SOLUTION: The distribution of the number made by a class of student last month: Number of donations made: 1 2 3 4 5 Number of students: 20 5 2 4 2 If a student is elected at random

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Question 1176014: The distribution of the number made by a class of student last month:
Number of donations made: 1 2 3 4 5
Number of students: 20 5 2 4 2
If a student is elected at random, find the probabilities of the following.
A. the student did not make any donations last month
B. The student made 1 or 2 donation last month
C. The student made more than 3 donations last month

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Number of donations made: 1 2 3 4 5
Number of students:       20 5 2 4 2   33 students

A. the student did not make any donations last month P(x=0) = 0
B. The student made 1 or 2 donation last month  P(1 0r 2) = 25/33
C. The student made more than 3 donations last month  P(x >3) = 6/33

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