The following is a set of data from a sample of n=11 items. Complete parts (a) through (c). X 60 3 18 12 24 27 21 45 33 15 18 Y 20 1 6 4 8 9 7 15 11 5 6 Question content area bottom Part 1 a. Compute the sample covariance.

The following is a set of data from a sample of n=11 items. Complete parts (a) through (c). X 60 3 18 12 24 27 21 45 33 15 18 Y 20 1 6 4 8 9 7 15 11 5 6 Question content area bottom Part 1 a. Compute the sample covariance.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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Question

The following is a set of data from a sample of

n=11

items. Complete parts (a) through (c).

X	60	3	18	12	24	27	21	45	33	15	18
Y	20	1	6	4	8	9	7	15	11	5	6

Question content area bottom

Part 1

a. Compute the sample covariance.

Definition Definition Measure of how two random variables change together. Covariance indicates the joint variability or the directional relationship between two variables. When two variables change in the same direction (i.e., if they either increase or decrease together), they have a positive covariance. When the change is in opposite directions (i.e., if one increases and the other decreases), the two variables have a a negative covariance.

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