You may need to use the appropriate appendix table to answer this question. The average price for a gallon of gasoline in the country A is $3.79 and in country B it is $3.45. Assume these averages are the population means in the two countries and that the probability distributions are normally distributed with a standard deviation of $0.25 in the country A and a standard deviation of $0.20 in country B. (a) What is the probability that a randomly selected gas station in country A charges less than $3.50 per gallon? (Round your answer to four decimal places.) 0.8771 |x (b) What percentage of the gas stations in country B charge less than $3.50 per gallon? (Round your answer to two decimal places.) 59.87 (c) What is the probability that a randomly selected gas station in country B charged more than the mean price in the country A? (Round your answer to four decimal places.) 0.1446

You may need to use the appropriate appendix table to answer this question. The average price for a gallon of gasoline in the country A is $3.79 and in country B it is $3.45. Assume these averages are the population means in the two countries and that the probability distributions are normally distributed with a standard deviation of $0.25 in the country A and a standard deviation of $0.20 in country B. (a) What is the probability that a randomly selected gas station in country A charges less than $3.50 per gallon? (Round your answer to four decimal places.) 0.8771 |x (b) What percentage of the gas stations in country B charge less than $3.50 per gallon? (Round your answer to two decimal places.) 59.87 (c) What is the probability that a randomly selected gas station in country B charged more than the mean price in the country A? (Round your answer to four decimal places.) 0.1446

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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