Q 1. Briefly describe 2 survey examples where a census of all items of interest may be appropriate.

Ans. Census - this is when the entire population of interest is surveyed for the purpose of data analysis. A census is appropriate when: 1) The population of interest is small, for example, a satisfaction survey for a new course (as the class is a relatively small number of people all can be surveyed). 2) The relevant data for the entire population is readily available, for example government statistics, which draw on census data. Q 2. For each …

…amp;lt;Tab/>16251681819196436529641004481 S<Tab/>1120 Variance = 1120 15 . Standard Deviation = √1120 15 = 8.64 (to 2.d.p.) <Tab/><Tab/> <Tab/><Tab/> v.<Tab/>Mean absolute deviation.<Tab/> S(x - x) = 106<Tab/>= 6.625 n 16 vi.<Tab/>Coefficient of Variation. S x 100% n 8.64 x 100 = 54% 16