9th Grade Margin Of Error Quizzes , Questions & Answers

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The Coefficient of Determination is generally measured as a percentage. If it is 95% then the statement would read as : 95% of the variation of the dependent variable (y variable), can be explained by the variation in the...

Questions: 15 | Attempts: 341 | Last updated: Jul 16, 2025

Sample Question
Jack is on a fitness campaign.He is measuring his improvement by counting the number of pushups he can do in one minute.He measures his progress at the end of each week.According to the line of linear regression, he has a Correlation Coefficient of 0.94.Which statement is most correct :

94% of the variation in his push up count can be explained by the number of weeks he has attended training

94% of the variation in his weekly attendance explained by the variation in his push-up count

89% of the variation in his push up count can be explained by the number of weeks he has attended training

89% of the variation in his weekly attendance explained by the variation in his push-up count

There relationship between attendance and pushups is non-linear

Section 6.2 - Lines Of Best Fit

Explore linear relationships in various contexts using scatter plots to determine lines of best fit, predict values, and analyze data trends.

Questions: 10 | Attempts: 1064 | Last updated: Aug 18, 2025

Sample Question
This scatter plot shows the annual profits for the past ten years for Ellen's business designing greeting cards. Use the graph to estimate the profit in the 9th year.

$12 500

$13 200

$13 500

$14 000

9th Grade Margin Of Error Quizzes , Questions & Answers

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