What is her mathematical expectation if the probabilities of her getting an A or B are 0.32 and 0.40, respectively?

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.4: Expected Value
Problem 1E: If a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the...
icon
Related questions
Question
A student’s parents promise her a gift of P 1,000 if she gets an A in Statistics, P 500 if she gets a B, and no reward otherwise. What is her mathematical expectation if the probabilities of her getting an A or B are 0.32 and 0.40, respectively?
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer