Imagine an election with just two candidates. Candidate A asks her consultant to conduct a poll to see if she (candidate A) is leading. What is the “null hypothesis” value that is being “tested” in this example?

What is the value of x in the following equation. -x ^3/2 = -27

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Identify one charcteristic of exponential growth