# Question

For the 33 nations in Example 7, we found a correlation of 0.682 between Internet use and Facebook use (both as percentages of population). The regression equation is predicted Facebook use = 3.09 + 0.460 Internet use

a. Based on the correlation value, the slope had to be positive. Why?

b. Indonesia had an Internet use of 10.5% and Facebook use of 13.49%. Find its predicted Facebook use based on the regression equation.

c. Find the residual for Indonesia. Interpret.

a. Based on the correlation value, the slope had to be positive. Why?

b. Indonesia had an Internet use of 10.5% and Facebook use of 13.49%. Find its predicted Facebook use based on the regression equation.

c. Find the residual for Indonesia. Interpret.

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