Multiple Choice
Let the lifetime of a new Jet Ski be represented by a lognormal variable, Y = eX where X is normally distributed. Let the mean of the lifetime of the Jet Ski be six years with a standard deviation of three years. What proportion of the Jet Skis will last nine or more years?
A) 0.1369
B) 0.1587
C) 0.8413
D) 0.8621
Correct Answer:
Verified
Correct Answer:
Verified
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