Get Help And Discuss STEM Concepts From Math To Data Science & Financial Literacy
STEM Gender Equality | Join us on ZOOM | Spreading Mathematical Happiness

MathsGee is free of annoying ads. We want to keep it like this. You can help with your DONATION

0 like 0 dislike
461 views
If the scores on a test have a mean of 26 and a standard deviation of 4, what is the z-score for a score of 18?
in Data Science by Diamond (50,454 points) | 461 views

1 Answer

0 like 0 dislike

z = (x – μ) / σ

   =   18 - 26/4  

   = -2   

   =  0228

50 - 0228 = 49%

 

 

 

 

 

 

 

 

by (109 points)

Related questions

0 like 0 dislike
1 answer
2 like 0 dislike
3 answers
asked Aug 26, 2019 in Data Science by Tedsf Diamond (50,454 points) | 53 views
0 like 0 dislike
1 answer
0 like 0 dislike
1 answer
0 like 0 dislike
1 answer

Welcome to MathsGee Q&A Bank, Africa’s largest personalized STEM and Financial Literacy education network that helps people find answers to problems, connect with others and take action to improve their outcomes.


MathsGee Q&A is the STEM and Financial Literacy knowledge-sharing community where students and experts put their heads together to crack their toughest questions.


MathsGee is free of annoying ads. We want to keep it like this. You can help with your DONATION

Enter your email address:

11,440 questions
9,430 answers
100 comments
10,397 users