kmcpig
22.08.2019 •
Mathematics
The table shows exam scores of students who watched a certain number of hours of television per week:
hours of tv 1 2 3 4 5 6 7 8 9 10
exam score 98 96 95 94 90 85 81 80 75 72
calculate the correlation coefficient.
-0.99 -0.89 -0.79 -0.69
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Ответ:
I made an excel spreadsheet for the calculations if you want to view it (attached).
Ответ:
4 goes into 71, 11 times and 3/4= 0.75. Hope that makes sense