Timothy wants to estimate the mean number of siblings for each student in his school. He records the number of sibilings for each of the 75 randomly selected students in the school. What is the statistic?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

20 points plus brainliest andwer plus my hover hoard im v desperate ! evaluate the polynomial for x=-2 in the equation -3x^3+7x^2-7x-1 (simplify your answer)

The table below shows the number of free throw shots attempted and the number of shots made for the five starting players on the basketball team during practice. each player's goal is to make 80% of her shots. players number of free throws made free throw attempts kelly 16 20 sarah 25 30 maggie 31 40 liz 44 50 kim 47 60 how many players made at least 80% of their shots? round to the nearest percent.