The average price for a gallon of gasoline in the United Statesis $3.74 and in Russia it is $3.4. Assume these averages are thepopulation means in the two countries and that the probabilitydistributions are normally distributed with a standard deviation of$0.25 in the United States and a standard deviation of $0.20 inRussia.
a. What is the probability that a randomlyselected gas station in the United States charges less than $3.65per gallon (to 4 decimals)?
b. What percentage of the gas stations in Russia charge lessthan $3.65 per gallon (to 2 decimals)?
c. What is the probability that a randomly selected gas stationin Russia charged more than the mean price in the United States (to4 decimals)?
