Select Page

Your Perfect Assignment is Just a Click Away

Starting at \$8.00 per Page

100% Original, Plagiarism Free, Customized to Your instructions!

## BCC Percentage of the Variation & Correlation Coefficient Questions

### Question Description

Use the data below for the temperatures on randomly chosen days during a summer class and the number of absences on those days to answer questions 1-10

Temperature, x 72 85 91 90 88 98 75 100 80

Number of absences, y 3 7 10 10 8 15 4 15 5

1. The mean value of x is: A. 77 B. 86.56 C. 90

2. The mean value of y is: A. 8.56 B. 9.02 C. 10.10

3. The value for the standard deviation of x is: A. 89.04 B. 9.59 C. 10.01

4. The value for the standard deviation of y is: A. 4.14 B. 4.39 C. 5,64

5. The equation of the linear regression line is: A. y = 0.449x + 30.27

B. y = 30.27x + 0.449 C. y = 0.449x  30.27

6. The percentage of the variation in y that can be explained by the variation in x is approximately: A. 96 B. 97 C. 98

7. The correlation coefficient, r value is: A. 0.96 B. 0.98 C. -0.98

8. The corelationship between x and y can be considered as: A. Strong positive B. strong negative C. no correlation

9. The number of absences for a day with the temperature at 82 as predicted by the linear regression equation is: A. 8 B. 7 C. 5

10.Using the least-squares linear regression line equation we can state that when temperature increases by 10 degree, the number of absences increase by approximately A. 5 B. 6 C. 7/

"Place your order now for a similar assignment and have exceptional work written by our team of experts, guaranteeing you A results."

## Our Service Charter

1. Professional & Expert Writers: Eminence Papers only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Eminence Papers are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Eminence Papers are known for the timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Eminence Papers, we have put in place a team of experts who answer all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.