Author:
Christine Farr

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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