Math Solutions

(Solved) The probability distribution of final grades (A = 4, B = 3, etc) for a certain college course is as follows. X(= Grade) 0 1 2 3 4 Probability

Question:

The probability distribution of final grades ( A = 4, B = 3, etc) for a certain college course is as follows.

X(= Grade) 0 1 2 3 4
Probability .02 0.08 0.39 0.35 0.16
  1. Find the mean, variance and the standard deviation of X
  2. What is the percentage probability of getting a 3.0 or better? Or a 2.5 or better?

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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