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- e=D33 A traffic officer is compiling information about the relationship between the hour of the day and the speed over the limit at which the motorist is ticketed. He computes a correlation coefficient of 0.12. What does this tell the officer? Select one: O a. There is a quadratic relationship between the variables O b. There is a strong positive linear correlation. O c. There is a strong negative linear correlation. O d. There is little evidence of a linear correlation.Annual high temperatures in a certain location have been tracked for several years. Let XX represent the year and YY the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between XX and YY. Use your calculator! x y 4 20.48 5 19.1 6 23.52 7 23.34 8 23.56 9 23.98 r=J. 1. Find out co-efficient or correlation from the following: x= 40 50 55 45 50 -60 65 65 70 80. y= 10 12 13 11 12 15 18 18 21 30.
- Annual high temperatures in a certain location have been tracked for several years. Let XX represent the year and YY the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between XX and YY. Use your calculator! x y 1 10.62 2 13.85 3 12.68 4 10.31 5 12.44 6 10.07 7 11.1 r=r=Annual high temperatures in a certain location have been tracked for several years. Let XX represent the year and YY the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between XX and YY. Use your calculator! x y 2 16.7 3 13.74 4 14.78 5 14.32 6 14.66 7 13.4 r=The multiple correlation (R) is: The correlation between predicted and observed scores. The sum of the simple r's. The highest simple r. Always between 0 and 1 (inclusive).
- How strong is this relationship? Obtain the correlation. (Provide your answer to four decimal places.) r=Please solve for the value of correlation given the following.The following table shows the number of units of a certain item sold by a store over a month in terms of the price in dollars charged by the store. Price in dollars 0.90 1.00 1.15 1.25 1.40 Number sold . 315 280 230 215 195 Use technology to find the correlation coefficient for the data. (Use decimal notation. Give your answer to two decimal places.) correlation coefficien What type of correlation is there between the price and the number sold?
- Which number below is representative of the largest correlation? r = -0.75 r = .05 r = -0.45 r = 0.65Annual high temperatures in a certain location have been tracked for several years. Let X epresent the year and Y he high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X nd Y. Use your calculator! x456789101112131415 y9.7577.6510.27.359.47.457.48.059.16.459.4 r=Homework Q2: Find the Pearson correlation coefficient Person Age (x) Income (y) (xy) (x²) (y²) 1 20 1500 30000 400 2250000 2 30 3000 90000 900 9000000 3 40 5000 200000 1600 25000000 4 50 7500 375000 2500 56250000 Total 140 17000 695000 5400 92500000 23
