The following data gives the number of hours 10 students spent studying and their corresponding grades on their midterm exams. Hours 0.5 1 1.5 2.5 3 3.5 4 4.5 5 6 Spent Studying Midterm 66 72 75 78 81 87 90 93 96 99 Grades Step 1. Draw a scatter plot of the given data. Midterm Grades Answer: 99- 96- 93- 90- 87- 84- $1- 78 75- 72 69 66 63 60- T 0 0.5 1 1.5 3.5 Hours Spent Studying 2.5 4 4.5 S 5.5 6 2. Estimate the correlation in words: positive, negative, no correlation. A) Positive B) Negative C) No correlation Step 3. Calculate the correlation coefficient, r. Round your answer to three decimal places.
The following data gives the number of hours 10 students spent studying and their corresponding grades on their midterm exams. Hours 0.5 1 1.5 2.5 3 3.5 4 4.5 5 6 Spent Studying Midterm 66 72 75 78 81 87 90 93 96 99 Grades Step 1. Draw a scatter plot of the given data. Midterm Grades Answer: 99- 96- 93- 90- 87- 84- $1- 78 75- 72 69 66 63 60- T 0 0.5 1 1.5 3.5 Hours Spent Studying 2.5 4 4.5 S 5.5 6 2. Estimate the correlation in words: positive, negative, no correlation. A) Positive B) Negative C) No correlation Step 3. Calculate the correlation coefficient, r. Round your answer to three decimal places.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 23PPS
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