If $\mathrm { X }$ Is a Normal Random Variable with Standard Deviation

question 6

Multiple Choice

If $\mathrm { X }$ is a normal random variable with standard deviation $2.50$ , and if the probability that $\mathrm { X }$ 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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