If X Is a Normal Random Variable with Standard Deviation

question 81

Multiple Choice

If X is a normal random variable with standard deviation 2.50, and if the probability that X is more than 5.95 is .1271 (as shown below) , then what is the mean of X? (Note: the diagram is not necessarily to scale.)

• A)5.8
• B)5.0
• C)4.7
• D)3.1

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