Question

The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of $4.59 and a standard deviation of $0.80.  Thirty-two gas stations from the Bay Area are randomly chosen. Find the probability that the average price of unleaded gas at the 32 gas stations is between $4.40 and $4.75.

Express as a percent with 2 decimal places

Group of answer choices

21.85%

78.15%

82.69%

17.31%

Answer 1

Answer---->>

Correct option is b). 78.15 %

Here z values probability calculate from z distribution table.

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