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1.Here are Quiz 1 and Quiz 2 scores for 3 students.For both quizzes, the mean is 10 and the standard deviation is 5.I am showing
1.Here are Quiz 1 and Quiz 2 scores for 3 students.For both quizzes, the mean is 10 and the standard deviation is 5.I am showing you an example of how to calculate the Pearson Product Moment Correlation Coefficient r:
this is the example
StudentQuiz 1Quiz 2z-Quiz 1z-Quiz 2(z Quiz 1)(z Quiz 2)
11515111
21010000
355-1-11
r = (2)/(3-1) = 1.0
Sum of ZxZy =2
This one is my question
Here is one for you to do:
StudentQuiz 1Quiz 2z-Quiz 1z-Quiz 2(z Quiz 1)(z Quiz 2)
4155
51010
6515
r =
Sum of ZxZy =
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