# Recent questions tagged probability

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At noon the minute and hour hands of a clock coincide.
At noon the minute and hour hands of a clock coincide.At noon the minute and hour hands of a clock coincide. a) What in the first time, $T_{1}$, when they are perpendicular? b) What is the next time, \ ...
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A coin is tossed 3 times. What is the probability that the tosses are the same?
A coin is tossed 3 times. What is the probability that the tosses are the same?A coin is tossed 3 times. What is the probability that the tosses are the same? ...
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Suppose a coin is tossed 3 times. What is the probability of obtaining exactly one head?
Suppose a coin is tossed 3 times. What is the probability of obtaining exactly one head?Suppose a coin is tossed 3 times. What is the probability of obtaining exactly one head? ...
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What is the definition of total probability?
What is the definition of total probability?What is the definition of total probability? ...
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What is the definition of conditional probability?
What is the definition of conditional probability?What is the definition of conditional probability? ...
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How can probability help us make better decisions?
How can probability help us make better decisions?How can probability help us make better decisions? ...
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How do I compute confidence intervals?
How do I compute confidence intervals?How do I compute confidence intervals? ...
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A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minute.
A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minute.A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minu ...
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A card is drawn from a deck of 52 playing cards. What is probability of getting a. A heart?
A card is drawn from a deck of 52 playing cards. What is probability of getting a. A heart?4. A card is drawn from a deck of 52 playing cards. What is probability of getting a. A heart? b. A red card? c. A face card? d. A number less tha ...
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How can i compute the number of data in the interval x̅±σ and x̅± 2σ.
How can i compute the number of data in the interval x̅±σ and x̅± 2σ. Salary ( ) Number of Workers ( ) 120-125 10 125-130 20 130-135 38 ...
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What is the p-value in statistics?
What is the p-value in statistics?What is the p-value in statistics? ...
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What is the probability density function for the normal distribution?
What is the probability density function for the normal distribution?What is the probability density function for the normal distribution? ...
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Show that the exponential distribution is a valid probability density function
Show that the exponential distribution is a valid probability density functionShow that the exponential distribution is a valid probability density function ...
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When is a probability density function (pdf) valid?
When is a probability density function (pdf) valid?When is a probability density function (pdf) valid? ...
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What is the Binomial distribution and why is it important?
What is the Binomial distribution and why is it important?What is the Binomial distribution and why is it important? ...
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The probability of an event A conditioned on an event B is denoted and defined as ...
The probability of an event A conditioned on an event B is denoted and defined as ...The probability of an event A conditioned on an event B is denoted and defined as ... ...
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When are two sets disjoint?
When are two sets disjoint?When are two sets disjoint? ...
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Compute the variance of a die roll, i.e. a uniform random variable over the sample space $\Omega=\{1,2,3,4,5,6\}$.
Compute the variance of a die roll, i.e. a uniform random variable over the sample space $\Omega=\{1,2,3,4,5,6\}$.Compute the variance of a die roll, i.e. a uniform random variable over the sample space $\Omega=\{1,2,3,4,5,6\}$. ...
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What is the formula for expected value in statistics and probability?
What is the formula for expected value in statistics and probability?What is the formula for expected value in statistics and probability? ...
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When are two events A and B termed as independent?
When are two events A and B termed as independent?When are two events A and B termed as independent? ...
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What are events in probability?
What are events in probability?What are events in probability? ...
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What is a sample space when calculating probability?
What is a sample space when calculating probability?What is a sample space when calculating probability? ...
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Explain the concept of opportunity loss, and show that the minimum opportunity loss is equal to the Expected Value of Perfect Information.
Explain the concept of opportunity loss, and show that the minimum opportunity loss is equal to the Expected Value of Perfect Information.(i) Explain the concept of opportunity loss, and show that the minimum opportunity loss is equal to the Expected Value of Perfect Information. (ii) T ...
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Use this information to update the error rate probability distribution and hence determine whether your advice needs amendment.