Question 15 In manufacturing tennis and golf balls, a tennis ball's average diameter is 8cm and a golf ball's average diameter is 3 cm. The variations in diameter, as measured by the standard deviations are found to be 0. 1 cm in both balls. Which machine Is operating more efciently, the one that manufactures tennis balls or the one that manufactures golf balls? a) Tennis balls with a variation of 0.1 b) Tennis balls with a measure of relative dispersion of 1.25% 0) Golf balls with a variation of 3.33% d) Both the same because the standard deviations are the same. Ill '4' 1r