To ensure that she obtained a sufficiently large number of minority respondents in a study on racial attitudes, a researcher divided the people in her population in to four racial groups. she then drew a random sample from each of these groups. what kind of sample is this?

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Which number completes the inequality? 2/3 < _ < 7/9

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)