A statistics class has 26 students. The instructor would like to select a random sample of...
A statistics class has 26 students. The instructor would like to select a random sample of 3 students to work together on a group project.
a. How many different samples are possible?
b. If 13 of the 26 students in class are freshmen, what is the probability that all 3 of the selected students are freshmen?
Help please
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