Eight adults are surveyed and asked how many credit cards they possess. Their responses are 4, 0, 3, 1, 5, 2, 2, and 3. Complete the table below. x x Overbar x minus x Overbar (x minus x Overbar) squared 4 2.5 0 2.5 3 2.5 1 2.5 5 2.5 2 2.5 2 2.5 3 2.5 Using the formula for standard deviation Sigma = StartRoot StartFraction Sigma-summation (x minus x Overbar) squared Over n EndFraction EndRoot find the standard deviation for the data in the table. a. StartRoot 0 EndRoot b. 0 c. 2.25 almost-equals 1.5 d. 2.25