Of a group of undergraduates, 5 are studying chemistry, 3 physics and 2 statistics. If 3 students are chosen ( at time) at random. a. Of the students chosen, how many are expected to study Chemistry? b. Calculate the probability that more than 1 will study statistics. c. Calculate the probability that exactly 2 will study physics.
Of a group of undergraduates, 5 are studying chemistry, 3 physics and 2 statistics. If 3 students are chosen ( at time) at random. a. Of the students chosen, how many are expected to study Chemistry? b. Calculate the probability that more than 1 will study statistics. c. Calculate the probability that exactly 2 will study physics.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter6: Ratio, Proportion, And Probability
Section6.7: Probability And Odds
Problem 2C
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Discrete Random Variables
Of a group of undergraduates, 5 are studying chemistry, 3 physics and 2 statistics. If 3 students are chosen ( at time) at random.
a. Of the students chosen, how many are expected to study Chemistry?
b. Calculate the probability that more than 1 will study statistics.
c. Calculate the probability that exactly 2 will study physics.
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