Thursday
April 24, 2014

Homework Help: statistics

Posted by Lynn on Friday, June 7, 2013 at 5:47pm.

Use the list and calculation method to answer the following questions. Show your work at each step.

4. You draw three cards (with replacement) from a standard deck of cards. What is the probability that

a. exactly one will be red: .125 + .125 + .125 = .375
b. none will be red, and: .125
c. more than two will be red: .125

Outcome Probability No. of Hits
RRR (.5)(.5)(.5) = .125 3
RRB (.5)(.5)(.5) = .125 2
RBR (.5)(.5)(.5) = .125 2
RBB (.5)(.5)(.5) = .125 1
BRR (.5)(.5)(.5) = .125 2
BRB (.5)(.5)(.5) = .125 1
BBR (.5)(.5)(.5) = .125 1
BBB (.5)(.5)(.5) = .125 0

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