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I. Solve the following problems. An insurance company wished to examine the relationship between income and amount of life insurance held by heads of families. The company drew a simple random sample of 10 heads of families and obtained the following results, as shown in the following table: Amount of Life Monthly Income (y) Family Insurance (x) xy (in thousand pesos) (in thousand pesos) 50 12 70 15 80 18 120 28 250 40 60 12 60 13 200 35 400 50 100 25 Ey=. Exy= Ex= Σy² = Ex² = n= a. Determine the linear regression equation using method of least squares with the monthly income as the independent variable. b. Estimate the amount of life insurance obtained by a family head from the same population whose monthly income is P25,000 AB А C DEEG F G H

I. Solve the following problems. An insurance company wished to examine the relationship between income and amount of life insurance held by heads of families. The company drew a simple random sample of 10 heads of families and obtained the following results, as shown in the following table: Amount of Life Monthly Income (y) Family Insurance (x) xy (in thousand pesos) (in thousand pesos) 50 12 70 15 80 18 120 28 250 40 60 12 60 13 200 35 400 50 100 25 Ey=. Exy= Ex= Σy² = Ex² = n= a. Determine the linear regression equation using method of least squares with the monthly income as the independent variable. b. Estimate the amount of life insurance obtained by a family head from the same population whose monthly income is P25,000 AB А C DEEG F G H

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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I. Solve the following problems, An insurance company wished to examine the relationship between income and amount of life insurance held by heads of families. The company drew a simple random sample of 10 heads of families and obtained the following results, as shown in the following table: Amount of Life Insurance (x) Monthly Income (y) Family xy (in thousand pesos) (in thousand pesos) 50 12 70 15 80 18 120 28 250 40 60 12 60 13 200 35 400 50 100 25 Σy² = Ex= Ey=. n= Exy= a. Determine the linear regression equation using method of least squares with the monthly income as the independent variable. b. Estimate the amount of life insurance obtained by a family head from the same population whose monthly income is P25,000 ABCDEFGH
Transcribed Image Text:I. Solve the following problems, An insurance company wished to examine the relationship between income and amount of life insurance held by heads of families. The company drew a simple random sample of 10 heads of families and obtained the following results, as shown in the following table: Amount of Life Insurance (x) Monthly Income (y) Family xy (in thousand pesos) (in thousand pesos) 50 12 70 15 80 18 120 28 250 40 60 12 60 13 200 35 400 50 100 25 Σy² = Ex= Ey=. n= Exy= a. Determine the linear regression equation using method of least squares with the monthly income as the independent variable. b. Estimate the amount of life insurance obtained by a family head from the same population whose monthly income is P25,000 ABCDEFGH
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