The average length of time it takes to complete a Ph. D. in statistics is 5.2 years, with a standard deviation of 0.7 years. In a random sample of 40 individuals with a Ph. D. in statistics, what is the 90th percentile of the sum total amount of time that all 40 spent in grad school

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.