Answer: For items 13-17 Consider the random experiment of tossing a fair die twice. 13. Specify the sample space of the random experiment.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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12. Suppose that the random variable X has 4 mass points. Give the value of c such that the
following is a valid pmf for X.
Answer:
For items 13-17
-3
-1
1
5
p(x) 1/12 1/8 c/24 1/2
X
Consider the random experiment of tossing a fair die twice.
13. Specify the sample space of the random experiment.
14. Define S as the sum (first toss + second toss) of the dots in the two rolls. Construct the PMF
of the random variable S.
Use the PMF to determine the probability that
15. the sum of the tosses is at least 6.
16. the sum of tosses is at least -2.
17. the sum of tosses is at most 3.
Transcribed Image Text:12. Suppose that the random variable X has 4 mass points. Give the value of c such that the following is a valid pmf for X. Answer: For items 13-17 -3 -1 1 5 p(x) 1/12 1/8 c/24 1/2 X Consider the random experiment of tossing a fair die twice. 13. Specify the sample space of the random experiment. 14. Define S as the sum (first toss + second toss) of the dots in the two rolls. Construct the PMF of the random variable S. Use the PMF to determine the probability that 15. the sum of the tosses is at least 6. 16. the sum of tosses is at least -2. 17. the sum of tosses is at most 3.
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