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Help me answer the following activities below and follow the given pages. Will rate you helpful, thank you. b. very weak negative correlation c. very
Help me answer the following activities below and follow the given pages. Will rate you helpful, thank you.
b. very weak negative correlation c. very weak positive correlation d. strong positive correlation PAGE 3VII. 7-day COVID-19 Update Make a table containing the data on COVID-19 cases per day within 7 days in two municipalities. One municipality is Calasiao and select one more municipality or city within Pangasinan. Determine the correlation coefficient of COVID-19 cases between these places and interpret the result. Sample table: Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 | Day 7 Calasiao (X) Municipality / City (Y) Write the source/ reference where you found the data. PAGE 9V. Compute the correlation coefficient of the given data and interpret the result. 1. The table shows the scores in Chemistry and Physics of 10 Grade 12 STEM students. JAK MAE CAT MAC LEN GRE ECH MER JES RUE Scores in Chemistry (X) 15 14 16 17 10 11 18 19 20 20 Scores in Physics (Y) 16 15 17 18 15 13 15 17 19 20 2. The table shows the heights of eggplant plants and the average lengths of eggplants. Plant Plant Plant Plant Plant Plant Plant Plant A B C D E F G H Height, in inch (X) 14 15 16 18 19 21 22 24 Length, in 3 inch (Y) 5 5 3. The following are the final grades of Grade 11 students in Precalculus and the number of social media post per day. Student Student Student Student Student Student Student Student Standent Grade in Pre- Calculus (X) 90 88 87 86 85 84 83 82 80 Number of 5 Posts (Y) 12 8 VI. Choose the letter of the correct answer. Write the chosen letter on a separate sheet of paper or in your notebook. 1. This is the measure of degree of the relationship between two variables. a. Johnson's correlation coefficient b. standard correlation coefficient c. Spearman Rho coefficient PAGE 69. What is the correlation coefficient, r? a. -0.92 b. 0.92 c. 0.75 d. 0.50 10. Which of the following best describes the computed correlation coefficient of the given data? a. very strong negative correlation b. very weak negative correlation c. strong negative correlation d. strong positive correlation For numbers 11 to 15, please refer to the table below. Samples A B C D E X 12 13 15 17 19 Y 16 2.3 24 19 26 11. What is () X)?? a. 76 b. 5776 c. 108 d. 1668 12. What is _ XY? a. 76 b. 5776 c. 108 d. 1668 13. What is > X2? a. 1188 b. 76 c. 2398 d. 108 14. What is the correlation coefficient, r? a. -0.92 b. 0.57 c. -0.70 d. 0.88 15. Which of the following best describes the computed correlation coefficient of the given data? a. very strong negative correlation b. very weak negative correlation c. very weak positive correlation d. strong positive correlation PAGE 8Choose the letter of the correct answer. Write the chosen letter on a separate sheet of paper or in your notebook. 1. This is the measure of degree of the relationship between two variables. a. Johnson's correlation coefficient b. Pearson's correlation coefficient c. standard correlation coefficient d. Spearman Rho coefficient 2. The sign (positive or negative) of the correlation coefficient indicates the of correlation between two variables. a. strength c. direction b. shape d. none of these 3. The absolute value of the correlation coefficient indicates the of correlation between two variables. a. strength c. direction b. shape d. none of the above 4. What is the strength and direction of correlation between two variables having a correlation coefficient value of -0.67? a. perfect negative correlation b. strong negative correlation c. weak positive correlation d. very weak positive correlation 5. What is the strength and direction of correlation between two variables having a correlation coefficient value of 1? a. perfect negative correlation b. strong negative correlation c. perfect positive correlation d. very weak positive correlation For numbers 6 to 10, please refer to the table below. Samples A B C D E X 2 4 6 8 10 Y 177 200 57 250 600 PAGE 16. What is Y X2? a. 30 b. 1284 c. 220 d. 9496 7. What is E XY? a. 30 b. 1284 c. 220 d. 9496 8. What is E Y2? a. 949649 b. 297078 C. 497078 d. 1284 9. What is the correlation coefficient, r? a. -0.92 b. 0.95 c. 0.70 d. 0.50 10. Which of the following best describes the computed correlation coefficient of the given data? a. very strong positive correlation b. very weak negative correlation c. strong negative correlation d. strong positive correlation For numbers 11 to 15, please refer to the table below. Samples A B C D E X 10 13 15 17 19 Y 20 3 2 -2 -4 11. What is () X)?? a. 5476 b. 120 c. 74 d. 1144 12. What is E XY? a. 74 b. 19 c. 114 d. 159 13. What is () Y)?? a. 19 b. 74 c. 361 d. 159 14. What is the correlation coefficient, r? a. -0.92 b. 0.95 C. -0.70 d. 0.88 15. Which of the following best describes the computed correlation coefficient of the given data? a. very strong negative correlation PAGE 2d. Pearson's correlation coefficient 2. The sign (positive or negative) of the correlation coefficient indicates the of correlation between two variables. a. strength c. shape b. direction d. none of the above 3. The absolute value of the correlation coefficient indicates the of correlation between two variables. a. strength c. direction b. shape d. none of the above 4. What is the strength and direction of correlation between two variables having a correlation coefficient value of 0.67? a. perfect negative correlation b. weak positive correlation c. very weak positive correlation d. strong positive correlation 5. What is the strength and direction of correlation between two variables having a correlation coefficient value of -1? a. perfect negative correlation b. strong negative correlation c. perfect positive correlation d. very weak positive correlation For numbers 6 to 10, please refer to the table below. Samples A B C D E X 3 5 7 Y 20 18 15 10 12 6. What is E X2? a. 165 b. 25 c. 327 d. 1193 7. What is E XY? a. 165 b. 75 c. 327 d. 1193 8. What is E Y2? a. 165 b. 327 c. 75 d. 1193 PAGE 71. Compute for the Pearson's r coefficient and describe the strength and direction of correlation of the following: 1. n =4 4. n=8 EX=9 EX = 26 EY - 13 EY -41 E XY = 25 EXY = 147 E X2 = 21.5 E X2 = 95 E Y2=57 E Y2= 323 2. n = 10 5. n = 10 E x =55 EX = 650 EY = 165 EY = 348 EXY = 1155 EXY = 23378 EX X22 == 3465385 EE XY22 == 1356042976 Y n =7 3. EX = 28 ZY = 0.75 PAGE 4EX? = 142.5 EXY =2.90 E YZ= 0.12 III. Complete the table and solve for the Pearson's r coefficient and describe the strength and direction of correlation. Student X Y X2 XY A 4 B 4.5 7 C 5 4 D 6 E 6.5 F 7 9 1= EX EY EX2 EY2 EXY IV. At this point, you can complete the sentence by filling in the blank spaces with your thoughts about Pearson Sample Correlation Coefficient. The is used to calculate the degree of relationship between two variables. The r value for a perfect positive correlation is The correlation coefficient for a perfect negative correlation is Negative value of correlation coefficient signifies that the slope of the trend line is To compute the correlation coefficient, we use the Pearson's r formula which is given by: PAGE 5Step by Step Solution
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