Advertisement

Advertisement

Advertisement

9th Grade Margin Of Error Quizzes, Questions & Answers

9th Grade

Recent Margin Of Error Quizzes

Correlation & Causality

Questions: 15 | Attempts: 337 | 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

Questions: 10 | Attempts: 1055 | 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

Advertisement