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(g) Give the standard deviation of X1.

(g) Give the standard deviation of X1.

College Algebra
College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 1SE: Can the average rate of change of a function be constant?
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4.97 A delivery truck travels from point A to point B and back using the same route each day. There are four traffic lights on the route. Let Xı denote the number of red lights the truck encounters going from A to B and X2 denote the number encountered on the return trip. Data collected over a long period suggest that the joint probability distribution for (X1, X2) is given by x2 1 2 3 4 0.01 0.03 0.01 0.03 0.07 0.01 0.05 0.11 0.08 0.15 0.01 1 0.03 0.02 2 0.03 0.01 3 0.02 0.07 0.10 0.03 0.01 4 0.01 0.06 0.03 0.01 0.01
Transcribed Image Text:4.97 A delivery truck travels from point A to point B and back using the same route each day. There are four traffic lights on the route. Let Xı denote the number of red lights the truck encounters going from A to B and X2 denote the number encountered on the return trip. Data collected over a long period suggest that the joint probability distribution for (X1, X2) is given by x2 1 2 3 4 0.01 0.03 0.01 0.03 0.07 0.01 0.05 0.11 0.08 0.15 0.01 1 0.03 0.02 2 0.03 0.01 3 0.02 0.07 0.10 0.03 0.01 4 0.01 0.06 0.03 0.01 0.01
(g) Give the standard deviation of X1.
Transcribed Image Text:(g) Give the standard deviation of X1.
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