Let x be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let y be a random variable that represents the percentage of successful field goals a professional basketball player makes in a season. A random sample of n = 6 professional basketball players gave the following information x 67 64 75 86 y 42 39 48 51 44 51 (a) Find Ex, Ey, Ex2, Ey2, Exy, and r. (Round r to three decimal places.) Ex=438✔ Ey 275✔ Ex²-32264✔✔ Ey² - 12727✔ Exy = 20231 r- .645 x
Let x be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let y be a random variable that represents the percentage of successful field goals a professional basketball player makes in a season. A random sample of n = 6 professional basketball players gave the following information x 67 64 75 86 y 42 39 48 51 44 51 (a) Find Ex, Ey, Ex2, Ey2, Exy, and r. (Round r to three decimal places.) Ex=438✔ Ey 275✔ Ex²-32264✔✔ Ey² - 12727✔ Exy = 20231 r- .645 x
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Let x be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let y be a random variable that represents the percentage of successful field goals a professional basketball player makes in a season. A random sample of n = 6 professional
basketball players gave the following information.
73 73
X 67 64 75 86
y 42 39 48 51 44 51
(a) Find Ex, Ey, Ex2, Ey2, Exy, and r. (Round r to three decimal places.)
Ex=438✔✔
2y = 275|
v
Ex2 32264✔✔
Ex² =
Ey212727
Exy = 20231|
r = .645 X
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