6

Consider the following data: 3, 8, 4, 10, 6, 2.

1. Calculate its mean and variance.

2. If all the above data was multiplied by 3, what would the new mean and variance be?


xi xi2
2 4
3 9
4 16
6 36
8 64
10 100
33 229

1

Statistical Operations

2

Statistical Operations