In determining automobile mileage ratings, it was found that the mpg (X) for certain model is normally distributed with a mean of 31 mpg and a standard deviation of 1.8 mpg. Find the following: A. P(X < 30) B. P(28 < X < 32) C. P(X > 34) D. P(X > 30)
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The Z score is calculated as (X - mean) / standard deviation. A. P(X < 30) Show more…
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