Mariah's scores on her first five algebra tests are 89%, 92%, 85%, 93%, and 67%. She retakes the last test and improves her score from 67% to 87%.
Part A: The measure of center that will be most affected by the new score is the? )

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Which of those sequences is a geometric sequence

Me because some of question i don’t understand