X Is a Normally Distributed Random Variable with a Standard

question 29

Multiple Choice

X is a normally distributed random variable with a standard deviation of 2.00. Find the mean of X if 12.71% of the area under the distribution curve lies to the right of 8.28. (Note: the diagram is not necessarily to scale.)

• A) 7.6
• B) 6.6
• C) 6.0
• D) 5.5

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