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A small-business Web site contains 100 pages and 56%, 25%, and 19% of the pages contain low, moderate, and high graphic content. respectively. A sample of four pages is selected without replacement, and X and Y denote the number of pages with moderate and high graphics output in the sample. Determine the following: Round your answers to three decimal places (eg. 98.765). (a)./ (y) y fjs (y) 0 11 2 3 (b) EXY | X= 3)= (c) V(Y | X= 3) = (d) Are X and Y independent?

A small-business Web site contains 100 pages and 56%, 25%, and 19% of the pages contain low, moderate, and high graphic content. respectively. A sample of four pages is selected without replacement, and X and Y denote the number of pages with moderate and high graphics output in the sample. Determine the following: Round your answers to three decimal places (eg. 98.765). (a)./ (y) y fjs (y) 0 11 2 3 (b) EXY | X= 3)= (c) V(Y | X= 3) = (d) Are X and Y independent?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 21PPS
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A small-business Web site contains 100 pages and 56 %, 25%, and 19% of the pages contain low, moderate, and high graphic content, respectively. A sample of four pages is selected without replacement, and X and Y denote the number of pages with moderate and high graphics output in the sample. Determine the following: Round your answers to three decimal places (e.g. 98.765). (a).fr (y) y fris (y) 0 i 1 2 4 i i (b) E(Y | X = 3) = i (c) V(Y|X= 3) = (d) Are X and Y independent?
Transcribed Image Text:A small-business Web site contains 100 pages and 56 %, 25%, and 19% of the pages contain low, moderate, and high graphic content, respectively. A sample of four pages is selected without replacement, and X and Y denote the number of pages with moderate and high graphics output in the sample. Determine the following: Round your answers to three decimal places (e.g. 98.765). (a).fr (y) y fris (y) 0 i 1 2 4 i i (b) E(Y | X = 3) = i (c) V(Y|X= 3) = (d) Are X and Y independent?
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