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Chapter 4: Q. 16 (page 192)
A positive linear relationship between two variables means that one variable tends to increase linearly as the other------
Increases
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The data for shell thickness and concentration of PCBs for Anacapa pelican eggs from Exerciseare on the Weiss Stats site.
(a) Decide whether finding a regression line for the data is reasonable. If so, then also do puts .
12. In the context of regression analysis, what is an
a. outlier?
b. influential observation?
Age and Price of Orions. In Table , we provided data on age and price for a sample of Orions between and years old. On the Weiss Stats site, we have given the ages and prices for a sample of Orions between and years old.
a. Obtain a scatterplot for the data.
b. Is it reasonable to find a regression line for the data? Explain your answer.
Fill in the blank.
The graph of a linear equation with one independent variable is a _____.
A value ofclose toindicates that there is a ------ linear relatinship between the variables.
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