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The following data gives the number of trips a family makes to the hos- pital and the number of children over five years of age in the family Children Over 5 Trips to the Hospital per Year 0 2 7 4 (a) Create a scatterplot of the data. े 0y (b) Calculate the mean number of children in the family 1 (c) Calculate the standard deviation of children in the family. Yodenobisnia (d) The standard deviation of trips to the hospital is 3.51. The mean number of trips to the hospital is 3.33. Use this and your answers to (c) and (d) to calculate the correlation coefficient, r. (e) What does your value for r say about the association between number of children in the family and annual number of trips to the hospital? (f) The regression equation for your data is y = 3.5x -- 7.17. Let's say that a family with 5 children over the age of 5 makes 4 trips to the hospital in one year. What is the residual for this observation? Remember the residual is y - y. 2

The following data gives the number of trips a family makes to the hos- pital and the number of children over five years of age in the family Children Over 5 Trips to the Hospital per Year 0 2 7 4 (a) Create a scatterplot of the data. े 0y (b) Calculate the mean number of children in the family 1 (c) Calculate the standard deviation of children in the family. Yodenobisnia (d) The standard deviation of trips to the hospital is 3.51. The mean number of trips to the hospital is 3.33. Use this and your answers to (c) and (d) to calculate the correlation coefficient, r. (e) What does your value for r say about the association between number of children in the family and annual number of trips to the hospital? (f) The regression equation for your data is y = 3.5x -- 7.17. Let's say that a family with 5 children over the age of 5 makes 4 trips to the hospital in one year. What is the residual for this observation? Remember the residual is y - y. 2

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The following data gives the number of trips a family makes to the hos- pital and the number of children over five years of age in the family Children Over 5 Trips to the Hospital per Year 0 2 7 4 (a) Create a scatterplot of the data. े 0y (b) Calculate the mean number of children in the family 1
Transcribed Image Text:The following data gives the number of trips a family makes to the hos- pital and the number of children over five years of age in the family Children Over 5 Trips to the Hospital per Year 0 2 7 4 (a) Create a scatterplot of the data. े 0y (b) Calculate the mean number of children in the family 1
(c) Calculate the standard deviation of children in the family. Yodenobisnia (d) The standard deviation of trips to the hospital is 3.51. The mean number of trips to the hospital is 3.33. Use this and your answers to (c) and (d) to calculate the correlation coefficient, r. (e) What does your value for r say about the association between number of children in the family and annual number of trips to the hospital? (f) The regression equation for your data is y = 3.5x -- 7.17. Let's say that a family with 5 children over the age of 5 makes 4 trips to the hospital in one year. What is the residual for this observation? Remember the residual is y - y. 2
Transcribed Image Text:(c) Calculate the standard deviation of children in the family. Yodenobisnia (d) The standard deviation of trips to the hospital is 3.51. The mean number of trips to the hospital is 3.33. Use this and your answers to (c) and (d) to calculate the correlation coefficient, r. (e) What does your value for r say about the association between number of children in the family and annual number of trips to the hospital? (f) The regression equation for your data is y = 3.5x -- 7.17. Let's say that a family with 5 children over the age of 5 makes 4 trips to the hospital in one year. What is the residual for this observation? Remember the residual is y - y. 2
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