question b

3.3.29 Question Help For 39 nations, a correlation of 0.856 was found between y = Internet use (%) and x = gross domestic product (GDP, in thousands of dollars per capita). The regression equation is y = - 3.45 + 1.37x. Complete parts (a) through (c) a. Based on the correlation value, the slope had to be positive. Why? O A. The slope and correlation are positive because gross domestic product could not be negative OB. The correlation and the slope are positive because the y-intercept is negative. &C. Although slope and correlation usually have different values, they always have the same sign. O D. That is a very unusual fact, because the slope and correlation usually have different signs. b. One nation had a GDP of 36.3 thousand dollars and Internet use of 21.5%. Find its predicted Internet use based on the regression equation. % (Round to one decimal place as needed.)