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Born to be old? Is there a relationship between the gestational period (time from
Chapter 3, Problem R3.1(choose chapter or problem)
Born to be old? Is there a relationship between the gestational period (time from conception to birth) of an animal and its average life span? The figure shows a scatterplot of the gestational period and average life span for 43 species of animals.30 0 10 20 30 40 Life span (years) Gestation (days) A B 0 100 200 300 400 500 600 700 (a) Describe the association shown in the scatterplot. (b) Point A is the hippopotamus. What effect does this point have on the correlation, the equation of the least-squares regression line, and the standard deviation of the residuals? (c) Point B is the Asian elephant. What effect does this point have on the correlation, the equation of the least-squares regression line, and the standard deviation of the residuals?
Questions & Answers
QUESTION:
Born to be old? Is there a relationship between the gestational period (time from conception to birth) of an animal and its average life span? The figure shows a scatterplot of the gestational period and average life span for 43 species of animals.30 0 10 20 30 40 Life span (years) Gestation (days) A B 0 100 200 300 400 500 600 700 (a) Describe the association shown in the scatterplot. (b) Point A is the hippopotamus. What effect does this point have on the correlation, the equation of the least-squares regression line, and the standard deviation of the residuals? (c) Point B is the Asian elephant. What effect does this point have on the correlation, the equation of the least-squares regression line, and the standard deviation of the residuals?
ANSWER:Step 1 of 4
Given:
A scatter plot representing the gestational period and the average lifespan for 43 species of animals is provided.