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What statistic can we use to determine the strength of the relationship between height and shoe size? covanance correlation coefficient correlation and covariance coefficient of variation What statistic can we use to determine percentage of variation in height that can be explained by shoe size? covariance correlation coefficient correlation and covariance coefficient of determinationWhich of the following interpretations of the regression output is INACCURATE: Based on the numbers in the table, the estimated average number of cars sold when x = 10 is 43.4. The slope, 3.89, is the estimated average number of cars sold when there is 1 TV ad. The intercept, 4.47, is the estimated average number of cars sold when there are 0 TV ads. For every additional TV ad, the estimated average number of cars sold increases by 3.89