SOLUTION: We are given an idea for a set of data and must determine if it is independent or dependent. A university collects scores on a scale of 1-5 for students mathematical abilities

Question 1176543: We are given an idea for a set of data and must determine if it is independent or dependent.
A university collects scores on a scale of 1-5 for students mathematical abilities at the beginning of their first year on campus. The university then collects the same scores at the end of the students' fourth year.
Would this be independent or dependent?
Answer by shajida(1) (Show Source): You can put this solution on YOUR website!
Dylan sells a charity magazine to raise money for the homeless, by approaching people
coming out of a train station. The probability that he will have a successful sale is 0.2.
Determine the probability that if Dylan approaches 20 people at random, he will sell the
magazine to,
(a) exactly 4 people
(b) more than 1 people
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