S27105 9) In a random sample of 56 families in a suburb, the data on the number of automobiles per family was organized as given in table: 0 2 3 5 6 6 16 16 7 2 5 Compute the mean number of automobiles per family. a) O 22.5 car per family b) O 2.25 cars per family c) O 2.67 cars per family d) O. 6 cars per familyS0263Exp 2fr Weight: 1 Given the following numbers, find the variance and the standard deviation. Use me to enter the answer (Round the answers upto 1 decimal places) 1 2 3 4 Back 8 Delete 3 8 10 13 16 9 Clear (a) Assume that the data set is the population. Tab (b ) Assume that the data set is a sample. Click here to enter answer Enter your Answer The data set is the population The data set is a sample Variance: Variance: Standard Deviation: Standard Deviation: Done7) The variance of the observations: 5, 2, 1, 4, 3 , assuming the data set is a population, is: a) 0 3 b) 0 2 c) O 2.75 d) 1.256) Find the range of the weights in the sample of 7 chickens. The weights are: 8, 12, 9, 11.5, 8.5, 9.5, 10 (pounds) a) 0 7 b) 0 4 c) 0 3 d) 0 5