Question:

For two data sets, each of size5, the variances are given to be4and5and the corresponding means are given to be2and4,respectively. The variance of the combined data set is112613252For two data sets, each of size5, the variances are given to be4and5and the corresponding means are given to be2and4,respectively. The variance of the combined data set is112613252555554444455555222224,4,4,44,,1121121121121121121121121111112226666661321321321321321321321321313132225252525252525252555222A112112112112112112112112112111111222B132132132132132132132132132131313222C6666666D525252525252525252555222?