As of 2018, the average GDP per capita (PPP) of all of the (PPP) of all of the countries of the world is US$17,300 with a standard deviation of US$9,200. You randomly sample 25 countries. 14. What is the probability that your sample mean is greater than US$15,000

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons