Which of the following is a statistical question?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2