Which of the statements are correct? (2 points) The chi-square goodness-of-fit test uses n − 1 degrees of freedom.
A condition for using the chi-square goodness-of-fit test is that all expected counts must be at least five.
A condition for using the chi-square goodness-of-fit test is the observations are based on a random sample.
I only
II only
I and II only
II and III only
I, II, and III

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?