A box of 8 flashlights contains 3 defective bulbs. A random sample of 2 is selected and tested. Let X be the random variable associated with the number of defective bulbs in a sample. (a) (b) Find the probability distribution of X Find the expected number of defective bulbs in a sample.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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A box of 8 flashlights contains 3 defective bulbs. A random sample of 2 is selected and tested.
Let X be the random variable associated with the number of defective bulbs in a sample.
(a)
(b)
Find the probability distribution of X
Find the expected number of defective bulbs in a sample.
A card is drawn from a standard 52-card deck. If the card is a diamond, you win $10. If not,
you lose $1. What is the expected value of this game?
Transcribed Image Text:A box of 8 flashlights contains 3 defective bulbs. A random sample of 2 is selected and tested. Let X be the random variable associated with the number of defective bulbs in a sample. (a) (b) Find the probability distribution of X Find the expected number of defective bulbs in a sample. A card is drawn from a standard 52-card deck. If the card is a diamond, you win $10. If not, you lose $1. What is the expected value of this game?
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