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A RANDOM VARIABLE FOLLOWS A NORMAL DISTRIBUTION WITH A MEAN OF 126 AND A STANDARD DEVIATION OF 26.

A RANDOM VARIABLE FOLLOWS A NORMAL DISTRIBUTION WITH A MEAN OF 126 AND A STANDARD DEVIATION OF 26.

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Author: Christine Farr
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A random variable follows a normal distribution with a mean of 126 and a standard deviation of 26.
What is the probability that a randomly selected value from this population is less than or equal to 140?
 
A random variable follows a normal distribution with a mean of 126 and a standard deviation of 26.
What is the probability that a randomly selected value from this population is between 105 and 140?
 
A random variable follows a uniform distribution between 25 and 45.
What is the standard deviation of this distribution?
 
A random variable follows a uniform distribution between 25 and 45.
What is the possibility that the observed value is exactly equal to 34?


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