Question

A random sample of 11 scores produced the following (hours of study, grade) data values. Hours Studied (X): 10, 3, 9, 4, 9, 3, 1, 10, 6, 3, 4 Test Grade (Y): 98, 55, 89, 74, 95, 56, 45, 92, 89, 60, 75 a. Compute the covariance. b. Compute the correlation coefficient.

Name: a random sample for 11 scores produced the following hours of study grade data values hours studiedx 10 3 9 4 9 3 1 10 6 3 4 test gradey 98 55 89 74 95 56 45 92 89 60 75 a compute the covari 11987
Uploaded: 2024-07-30T21:40:26-08:00
Duration: 3 min 24 s
Channel: Adi S
Description: a random sample for 11 scores produced the following hours of study grade data values hours studiedx 10 3 9 4 9 3 1 10 6 3 4 test gradey 98 55 89 74 95 56 45 92 89 60 75 a compute the covari 11987

          A random sample of 11 scores produced the following (hours of study, grade) data values.

Hours Studied (X): 10, 3, 9, 4, 9, 3, 1, 10, 6, 3, 4
Test Grade (Y): 98, 55, 89, 74, 95, 56, 45, 92, 89, 60, 75

a. Compute the covariance.
b. Compute the correlation coefficient.

Added by Nicholas R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Adi S

07/30/2024

Step 1

Mean of X (μ_x) = (10 + 3 + 9 + 4 + 9 + 3 + 1 + 10 + 6 + 3 + 4) / 11 Mean of Y (μ_y) = (98 + 55 + 89 + 74 + 95 + 56 + 45 + 92 + 89 + 60 + 75) / 11 Show more…

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A random sample of 11 scores produced the following (hours of study, grade) data values. Hours Studied (X): 10, 3, 9, 4, 9, 3, 1, 10, 6, 3, 4 Test Grade (Y): 98, 55, 89, 74, 95, 56, 45, 92, 89, 60, 75 a. Compute the covariance. b. Compute the correlation coefficient.