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Make a scatter plot for the given data. Label the tick marks on the x-axis and the y-axis Also, compute, r, the correlation coefficient and describe it's strength including if postive or negative. 17) X 27 5 4 8 3 r = y 3 6 4 4 5 2 description of r: Use the data to answer the questions. 18) The average number of people in a family that received welfare for various years is given below. The least-squares regression line is in the form y = ax + b where x is the year and y is the average number of people in a family who received welfare for the given year. a). Compute the least-squares regression line for predicting the average number of people in a family that received welfare family size from the year. b). Find the correlation coefficient. c). Predict the average welfare family size for 1982. Round to 1 decimal place. Year (x) Avg. Welfare Family Size (y) 1969 4.0 1973 3.6 1975 3.2 1979 3.0 1983 3.0 1988 3.0 1991 2.9

Make a scatter plot for the given data. Label the tick marks on the x-axis and the y-axis Also, compute, r, the correlation coefficient and describe it's strength including if postive or negative. 17) X 27 5 4 8 3 r = y 3 6 4 4 5 2 description of r: Use the data to answer the questions. 18) The average number of people in a family that received welfare for various years is given below. The least-squares regression line is in the form y = ax + b where x is the year and y is the average number of people in a family who received welfare for the given year. a). Compute the least-squares regression line for predicting the average number of people in a family that received welfare family size from the year. b). Find the correlation coefficient. c). Predict the average welfare family size for 1982. Round to 1 decimal place. Year (x) Avg. Welfare Family Size (y) 1969 4.0 1973 3.6 1975 3.2 1979 3.0 1983 3.0 1988 3.0 1991 2.9

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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Make a scatter plot for the given data. Label the tick marks on the x-axis and the y-axis Also, compute, r, the correlation coefficient and describe it's strength including if postive or negative. 17) X 27 5 4 8 3 r = y 3 6 4 4 5 2 description of r: Use the data to answer the questions. 18) The average number of people in a family that received welfare for various years is given below. The least-squares regression line is in the form y = ax + b where x is the year and y is the average number of people in a family who received welfare for the given year. a). Compute the least-squares regression line for predicting the average number of people in a family that received welfare family size from the year. b). Find the correlation coefficient. c). Predict the average welfare family size for 1982. Round to 1 decimal place. Year (x) Avg. Welfare Family Size (y) 1969 4.0 1973 3.6 1975 3.2 1979 3.0 1983 3.0 1988 3.0 1991 2.9
Transcribed Image Text:Make a scatter plot for the given data. Label the tick marks on the x-axis and the y-axis Also, compute, r, the correlation coefficient and describe it's strength including if postive or negative. 17) X 27 5 4 8 3 r = y 3 6 4 4 5 2 description of r: Use the data to answer the questions. 18) The average number of people in a family that received welfare for various years is given below. The least-squares regression line is in the form y = ax + b where x is the year and y is the average number of people in a family who received welfare for the given year. a). Compute the least-squares regression line for predicting the average number of people in a family that received welfare family size from the year. b). Find the correlation coefficient. c). Predict the average welfare family size for 1982. Round to 1 decimal place. Year (x) Avg. Welfare Family Size (y) 1969 4.0 1973 3.6 1975 3.2 1979 3.0 1983 3.0 1988 3.0 1991 2.9
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