What is the probability the random variable


Problems based on Normal Distribution

A random variable is normally distributed with a mean of 50 and a standard deviation of 5.

a. plan a normal curve for the probability density function. Label horizontal axis with values of 35, 40, 45, 50, 55, 60, and 65. The normal curve almost touches the horizontal axis at three standard deviations below and at three standard deviations above the mean (in this case at 35 and 65).

b. What is the probability the random variable will suppose a value between 45 and 55?

c. What is the probability the random variable will suppose a value between 40 and 60?

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Basic Statistics: What is the probability the random variable
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