miss Edward bought 11.92 gallons of gasoline at 1.49 1/9 per gallon. Estimate how much she paid for the gasoline

Which term best describes the association between variables a and b

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin