Find the expected value for the random variable: E(X) = || x 1 3 5 6 P(X) 0.24 0.13 0.19 0.44

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.6: Absolute Value Functions
Problem 40SE: Students who score within 18 points of the number 82 will pass a particular test. Write this...
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Find the expected value for the random variable:
E(X) = ||
X
1
3
5
6
P(X) 0.24
0.13
0.19
0.44
Transcribed Image Text:Find the expected value for the random variable: E(X) = || X 1 3 5 6 P(X) 0.24 0.13 0.19 0.44
4 men and 6 women are ranked according to their scores on an exam. Assume that no two scores are alike, and that all 10! possible rankings are equally likely. Let X denote the highest ranking achieved by a woman (so
X = 1 indicates that a woman achieved the highest score on the exam). Find each of the following:
P(X = 2) =
P(X = 3) =
P(X=4)=
P(X = 10)=
Transcribed Image Text:4 men and 6 women are ranked according to their scores on an exam. Assume that no two scores are alike, and that all 10! possible rankings are equally likely. Let X denote the highest ranking achieved by a woman (so X = 1 indicates that a woman achieved the highest score on the exam). Find each of the following: P(X = 2) = P(X = 3) = P(X=4)= P(X = 10)=
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