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Home
Tag
population
Recent questions tagged population
105
views
1
answers
What is India's population size?
What is India's population size?
test26
Wooden Status
267
points
test26
asked
Mar 28
General Knowledge
sample
population
india
+
–
86
views
1
answers
If we want to estimate the population proportion with a margin of error of 0.10 for a level of confidence of 90% and has no estimate for the population proportion. What is the required sample size? a) 50 b) 58 c) 70 d) 68 Give correct answer
If we want to estimate the population proportion with a margin of error of 0.10 for a level of confidence of 90% and has no estimate for the population proportion. What i...
shivvv99999
141
points
shivvv99999
asked
Feb 3
Mathematics
sample
population
mathematics
answer
+
–
134
views
1
answers
If 1,234,567 people are registered to vote in a province and we estimate that about 60% will vote, approximately how many people will vote?
If 1,234,567 people are registered to vote in a province and we estimate that about 60% will vote, approximately how many people will vote?
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 14, 2023
Mathematics
probability
vote
people
population
sample
socialist
liberals
+
–
118
views
1
answers
In a small town, 2,500 people are eligible to vote. If 1,500 of them voted in the last election, what percentage of eligible voters cast their vote?
In a small town, 2,500 people are eligible to vote. If 1,500 of them voted in the last election, what percentage of eligible voters cast their vote?
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 14, 2023
Mathematics
population
sample
probability
socialist
liberals
vote
people
+
–
553
views
1
answers
What is pooled population standard deviation?
What is pooled population standard deviation?
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Mar 14, 2023
AI & Data Science
pooled
population
standard
deviation
+
–
266
views
1
answers
Define the term "population mean under testing"
Define the term "population mean under testing"
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Mar 14, 2023
AI & Data Science
define
term
population
mean
testing
+
–
348
views
1
answers
What was the approximate percent change, rounded to the nearest integer if required, in the per capita gross domestic product of the city from 2000 to \(2015 ?\)
The population of City \(\mathrm{X}\) increased from 2 million in the year 2000 to \(2.5\) million in 2015 and the gross domestic product of the city in 2000 was \(\frac{...
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Feb 12, 2023
Mathematics
country
average
round-off
population
thousand
gross
domestic
+
–
622
views
2
answers
Why do people visit Acalytica?
Why do people visit Acalytica?
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jan 25, 2023
MathsGee Meta
population
country
calculate
acalytica
people
questions
answer
+
–
201
views
0
answers
A colony of an endangered species originally numbering 1000 was predicted to have a population \(\mathrm{N}\) after \(t\) years given by the equation \(\mathrm{N}=1000(0,9)^t\)
A colony of an endangered species originally numbering 1000 was predicted to have a population \(\mathrm{N}\) after \(t\) years given by the equation \(\mathrm{N}=1000(0,...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jan 24, 2023
Mathematics
rate
population
increases
hour
increment
time
equation
+
–
349
views
0
answers
An algal cell population is found to have \(a_k\) cells on day \(k\). Each day, the number of cells at least doubles. If \(a_0 \geq 1\) and \(a_3 \leq 60\), how many quadruples of integers \(\left(a_0, a_1, a_2, a_3\right)\) . . .
An algal cell population is found to have \(a_k\) cells on day \(k\). Each day, the number of cells at least doubles. If \(a_0 \geq 1\) and \(a_3 \leq 60\), how many quad...
MathsGee
Platinum
113k
points
MathsGee
asked
Dec 8, 2022
Mathematics
algal
population
cell
size
integers
+
–
372
views
1
answers
How does one make sure a sample from a population is random?
How does one make sure a sample from a population is random?
MathsGee
Platinum
113k
points
MathsGee
asked
Nov 19, 2022
AI & Data Science
sample
population
random
+
–
589
views
1
answers
What is the effect of megatrends such as population growth and urbanisation on planning and development?
What is the effect of megatrends such as population growth and urbanisation on planning and development?
MathsGee
Platinum
113k
points
MathsGee
asked
Sep 14, 2022
General Knowledge
effect
megatrends
population
growth
urbanisation
planning
development
+
–
823
views
1
answers
Identify the statistical population, sample, and variable of interest in each of the following situations:
Identify the statistical population, sample, and variable of interest in each of the following situations:(a) Tensile strength is measured on 20 specimens of super streng...
Siyavula
Wooden Status
4.3k
points
Siyavula
asked
Aug 12, 2022
AI & Data Science
identify
statistical
population
sample
variable
+
–
337
views
1
answers
A television channel announced a vote for their viewers' favorite television show. Viewers were asked to visit the channel's website and vote online for their favorite show. Identify the population in terms of preferences, and the sample.
A television channel announced a vote for their viewers' favorite television show. Viewers were asked to visit the channel's website and vote online for their favorite sh...
Siyavula
Wooden Status
4.3k
points
Siyavula
asked
Aug 12, 2022
AI & Data Science
television
channel
population
sample
study
advertising
+
–
501
views
1
answers
What is a statistical sample?
What is a statistical sample?
Maths-Genie
Bronze Status
9.4k
points
Maths-Genie
asked
Aug 12, 2022
AI & Data Science
sample
data
population
statistic
parameter
variable
study
+
–
536
views
1
answers
What is a statistical population?
What is a statistical population?
MathsGee
Platinum
113k
points
MathsGee
asked
Aug 12, 2022
AI & Data Science
population
data
sample
statistic
variable
parameter
+
–
407
views
1
answers
What is the mathematical definition of sample variance?
What is the mathematical definition of sample variance?
MathsGee
Platinum
113k
points
MathsGee
asked
Jul 26, 2022
AI & Data Science
definition
mathematical
variance
probability
sample
population
calculate
+
–
803
views
1
answers
It was found that the mean length of 100 parts produced by a lathe was \(20.05 \mathrm{~mm}\) with a standard deviation of \(0.02 \mathrm{~mm}\). Find the probability that a part selected at random would have a length
It was found that the mean length of 100 parts produced by a lathe was \(20.05 \mathrm{~mm}\) with a standard deviation of \(0.02 \mathrm{~mm}\). Find the probability tha...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jul 23, 2022
AI & Data Science
probability
sample
population
females
males
mean
calculate
+
–
707
views
1
answers
Of all the smokers in a particular district, \(40 \%\) prefer brand \(A\) and \(60 \%\) prefer brand \(B\). Of those smokers who prefer brand \(A, 30 \%\) are females, and of those who prefer brand \(B, 40 \%\) are female.
Of all the smokers in a particular district, \(40 \%\) prefer brand \(A\) and \(60 \%\) prefer brand \(B\). Of those smokers who prefer brand \(A, 30 \%\) are females, an...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jul 23, 2022
AI & Data Science
probability
population
number
outcomes
random
event
conditional
+
–
369
views
1
answers
What is the sample space when a die is thrown once?
What is the sample space when a die is thrown once?
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jul 22, 2022
AI & Data Science
sample
space
probability
die
fair
rolled
population
+
–
302
views
0
answers
Italy has a population of \(59.21\) million people. \(15.6\) million people are 65 years or older (" \(65+\) group"). Calculate the relative share of the people in the \(65+\) group in the total population.
Italy has a population of \(59.21\) million people. \(15.6\) million people are 65 years or older (" \(65+\) group"). Calculate the relative share of the people in the \(...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jul 6, 2022
Mathematics
population
share
people
italy
relative
+
–
204
views
0
answers
A person from the town is selected at random, and states that she voted at the last election. What is the probability that she is a socialist?
In a certain town, \(30 \%\) of the people are conservatives, \(50 \%\) socialists, and \(20 \%\) liberals. In this town at the last election, \(65 \%\) of conservatives ...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jul 2, 2022
AI & Data Science
probability
population
sample
socialist
liberals
+
–
407
views
1
answers
Does the sample mean provide a good summary of these trials? If not, write a sentence or two to summarize more accurately.
Engineers are developing a miniaturized robotic capsule for exploration of a human gastrointestinal tract. One novel solution uses motor-driven legs. The engineers' best ...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
sample
population
statistic
parameter
research
incubator
chickens
+
–
597
views
1
answers
What is sample variance?
What is sample variance?
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
variance
sample
population
formulae
calculate
probability
outcomes
+
–
564
views
1
answers
What is the formula of a sample mean?
What is the formula of a sample mean?
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
sample
formula
mean
statistic
arithmetic
population
deviation
+
–
275
views
1
answers
Is this sample representative of the population of magazine readers?
A magazine which features the latest computer hardware and software for homeoffice use asks readers to go to their website and indicate whether or not they owned specific...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
sample
representative
population
magazine
readers
+
–
673
views
1
answers
Transceivers provide wireless communication between electronic components of consumer products, especially transceivers of Bluetooth standards.
Transceivers provide wireless communication between electronic components of consumer products, especially transceivers of Bluetooth standards. Addressing a need for a fa...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
population
unit
variable
interest
statistical
sample
+
–
269
views
0
answers
For ceiling fans to rotate effectively, the bending angle of the individual paddles of the fan must remain between tight limits. From each hour's production, 25 fans are selected and the angle is measured.
For ceiling fans to rotate effectively, the bending angle of the individual paddles of the fan must remain between tight limits. From each hour's production, 25 fans are ...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
bs101b
ceiling
paddles
production
population
sample
+
–
877
views
1
answers
Identify the statistical population, sample, and variable of interest in each of the following situations:
Identify the statistical population, sample, and variable of interest in each of the following situations:(a) Tensile strength is measured on 20 specimens of super streng...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
statistic
variable
sample
population
data
parameter
study
+
–
404
views
0
answers
Consider the population of all cars owned by women in your neighbourhood. You want to know the model of the car.
Consider the population of all cars owned by women in your neighborhood. You want to know the model of the car.(a) Specify the population unit.(b) Specify the variable of...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
population
cars
women
neighbourhood
model
car
+
–
286
views
1
answers
Is the sample likely to be representative?
A television channel announced a vote for their viewers' favorite television show. Viewers were asked to visit the channel's website and vote online for their favorite sh...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
sample
population
information
inferring
representative
probability
outcomes
+
–
343
views
1
answers
Identify the population and the sample.
An article in a civil engineering magazine asks "How Strong Are the Pillars of Our Overhead Bridges?" and goes on to say that samples were collected of materials being us...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 17, 2022
AI & Data Science
identify
population
sample
data
statistic
variable
+
–
744
views
1
answers
How often is a census conducted?
How often is a census conducted?
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 5, 2022
AI & Data Science
census
south
africa
last
conducted
population
national
+
–
786
views
1
answers
Who organises the South African Census?
Who organises the South African Census?
AstraNova
Diamond
68.1k
points
AstraNova
asked
Jun 5, 2022
AI & Data Science
south
african
national
population
acalytica
africa
census
+
–
741
views
1
answers
What is a population census?
What is a population census?
MathsGee
Platinum
113k
points
MathsGee
asked
Jun 5, 2022
AI & Data Science
population
census
rwanda
national
males
district
demographics
+
–
433
views
1
answers
Josh rolls one six-sided die and one four-sided die. What is the probability he will roll two odd numbers?
Josh rolls one six-sided die and one four-sided die. What is the probability he will roll two odd numbers?
MathsGee
Platinum
113k
points
MathsGee
asked
Apr 28, 2022
Mathematics
probability
die
calculate
outcomes
rolled
sample
population
+
–
608
views
1
answers
What are the formulae for population and sample variance?
What are the formulae for population and sample variance?
MathsGee
Platinum
113k
points
MathsGee
asked
Mar 23, 2022
AI & Data Science
formulae
population
sample
variance
+
–
407
views
1
answers
The Bloom Biscuit Company is planning a marketing strategy for the upcoming year. They plan on doing a survey to see how many residents in their state bake.
The Bloom Biscuit Company is planning a marketing strategy for the upcoming year. They plan on doing a survey to see how many residents in their state bake. Marketing ass...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Feb 15, 2022
General Knowledge
marketing
strategy
plan
residents
bake
population
business
+
–
1.6k
views
1
answers
A six-sided die has four green and two red faces and is balanced so that each face is equally likely to come up. The die will be rolled several times.
A six-sided die has four green and two red faces and is balanced so that each face is equally likely to come up. The die will be rolled several times. You must choose one...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Feb 8, 2022
AI & Data Science
probability
rolled
die
sample
population
outcomes
calculate
+
–
793
views
1
answers
A fair coin is tossed, and a fair die is thrown. Write down sample spaces for
A fair coin is tossed, and a fair die is thrown. Write down sample spaces for(a) the toss of the coin;(b) the throw of the die;(c) the combination of these experiments.Le...
AstraNova
Diamond
68.1k
points
AstraNova
asked
Feb 8, 2022
AI & Data Science
die
probability
fair
sample
space
population
rolled
+
–
1.3k
views
1
answers
A reporter for a student newspaper is writing an article on the cost of off-campus housing. A sample of 16 one-bedroom apartments within a half-mile of campus resulted in a sample mean of \(\$ 750\) per month ...
A reporter for a student newspaper is writing an article on the cost of off-campus housing. A sample of 16 one-bedroom apartments within a half-mile of campus resulted in...
MathsGee
Platinum
113k
points
MathsGee
asked
Feb 2, 2022
AI & Data Science
confidence
interval
t-test
population
sample
+
–
393
views
0
answers
What is a census?
What is a census?
MathsGee
Platinum
113k
points
MathsGee
asked
Jan 24, 2022
AI & Data Science
census
population
sample
identify
+
–
11.7k
views
2
answers
A grocery store is interested in how much money, on average, their customers spend each visit in the produce department.
A grocery store is interested in how much money, on average, their customers spend each visit in the produce department. Using their store records, they draw a sample of ...
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 13, 2021
General Knowledge
sample
population
parameter
statistic
variable
discrete
+
–
534
views
0
answers
Define population and mention the criteria of selecting sample from it.
Define population and mention the criteria of selecting sample from it.
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 6, 2021
AI & Data Science
define
population
mention
criteria
selecting
sample
+
–
705
views
1
answers
How is sample size of a definite population determined?
How is sample size of a definite population determined?
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 6, 2021
AI & Data Science
sample
size
definite
population
determined
+
–
626
views
1
answers
In a questionnaire of 100 students at Acalytica University, \(20 \%\) were found to be Business Management students.
In a questionnaire of 100 students at Acalytica University, \(20 \%\) were found to be Business Management students. Based on this information, the researcher generalises...
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 6, 2021
AI & Data Science
sample
population
descriptive
statistics
inferential
+
–
648
views
1
answers
The first step in the sampling process is to:
The first step in the sampling process is to:a. Determine the sampling frameb. Select the sampling techniquec. Determine the appropriate sample sized. Define the populati...
MathsGee
Platinum
113k
points
MathsGee
asked
Oct 6, 2021
AI & Data Science
first
step
sampling
process
population
+
–
542
views
0
answers
An electric pole, 7 meters high, casts a shadow of 5 meters. Find the height of a tree that casts a shadow of 10 meters under similar conditions.
An electric pole, 7 meters high, casts a shadow of 5 meters. Find the height of a tree that casts a shadow of 10 meters under similar conditions.
Student
Bronze Status
5.8k
points
Student
asked
Sep 27, 2021
Mathematics
mean
difference
values
level
sample
population
zimsec
+
–
386
views
1
answers
Student ratings of college instructors is common and widespread across the USA. Often such ratings consist of several instructional dimensions such as course organization, clarity of presentation, utility of course material, etc.
Student ratings of college instructors is common and widespread across the USA. Often such ratings consist of several instructional dimensions such as course organization...
MathsGee
Platinum
113k
points
MathsGee
asked
Sep 14, 2021
AI & Data Science
probability
sample
measurements
mathematics
teacher
literacy
population
+
–
702
views
1
answers
Assume you wish to randomly sample from a population of 33,050 teachers across the southeast USA. With a \(95 \%\) confidence level and an error rate of no more than \(\pm 4 \%\), what size sample would be needed?
Assume you wish to randomly sample from a population of 33,050 teachers across the southeast USA. With a \(95 \%\) confidence level and an error rate of no more than \(\p...
MathsGee
Platinum
113k
points
MathsGee
asked
Sep 14, 2021
AI & Data Science
sample
probability
measurements
mathematics
teacher
literacy
population
+
–
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