(Answered) Suppose that the population of all gasoline mileages is

Statistics

Suppose that the population of all gasoline mileages is normally distributed with mean µ = 31.5 mpg and standard deviation σ = 0.8 mpg. Let y denote a mileage randomly selected from this population. Find the probabilities:

P(30.7 ≤ y ≤ 32.3)
P(31.0 ≤ y ≤ 31.3)
P(y ≤29.5)
P(y ≥ 33.4)

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