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Suppose that the price of a gallon of gasoline is normally distributed with a mean of...

Suppose that the price of a gallon of gasoline is normally distributed with a mean of 3.73 dollars and a standard deviation of 0.25 dollars. What is the probability that a gas station charges less than or equal to 3.50 dollars per gallon?

Use the information from Question 3. What is the probability that a gas station charges between 3.25 and 4 dollars per gallon?

Use the information from Question 3. What is the probability that a gas station charges at least 4 dollars per gallon?

Use the information from Question 3. What is the 30.5th percentile of the gas prices?

Use the information in Question 3. How expensive must a gas station's gas be in order for it to be in the top 1.5 percent of all gas prices?

Math   Statistics-And-Probability   
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