Mathematics, 10.12.2020 16:30, gummybear1398
Students took two parts of a test, each worth 50 points. Part A has a variance of 25, and Part B has a variance of 36. The correlation between the test scores is 0.8. (a) If the teacher adds the grades of the two parts together to form a final test grade, what would the variance of the final test grades be? (b) What would the variance of Part A - Part B be?
Answers: 2
Mathematics, 21.06.2019 16:30, andybiersack154
If 20% of a number is 35, what is 50% of that number?
Answers: 2
Mathematics, 21.06.2019 21:00, joshuasanders8862
You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up
Answers: 1
Students took two parts of a test, each worth 50 points. Part A has a variance of 25, and Part B has...
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