Find the correlation coefficient r from the table below. Round to the nearest hundredths place. Hours in Mall 10 8 9 3 1 2 5 6 7 8 2 3 Dollars spent 40 15 24 20 10 35 50 70 88 25 100 60 Your answer
Added by Joshua A.
Close
Step 1
To find the mean, we add up all the values and divide by the total number of values. 8 + 9 + 3 + 1 + 2 + 5 + 6 + 7 + 8 = 49 The total number of values is 9. Mean = 49 / 9 = 5.44 (rounded to two decimal places) Show more…
Show all steps
Your feedback will help us improve your experience
Ahmet Yavas and 97 other Calculus 3 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The following data gives the number of hours 10 students spent studying and their corresponding grades on their midterm exams. Hours Spent Studying 1 1.5 2.5 3 3.5 4 4.5 5 5.5 6 Midterm Grades 63 66 69 72 75 78 81 84 90 96 Step 3 of 3: Calculate the correlation coefficient, r. Round your answer to three decimal places.
Ahmet Y.
Find the value of the linear correlation coefficient r. The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands): Cost 9 2 3 4 2 5 9 10 number 85 52 55 68 67 86 83 73 (SIDE NOTE the cost and number correlates; 9 with 85, 2 with 52, etc.)
Adi S.
Jerelyn N.
Recommended Textbooks
Calculus: Early Transcendentals
Thomas Calculus
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD