Statistics Quiz 2

Mode of the data 3, 7,8, 8, 7,6, 8, 4, 3, 11 is

Mean of the data $x_1, x_2, x_3 , x_4 , x_5$ is 15. If each observation is multiplied 3 then the mean becomes

If the mean of the data 12, 8, 6, 3, 9 is 7.6. If 5 is added to each observation then the new mean is

Mean of the data 8, 7, 6, 14, 12, 10, 20, 16, 15 and 14 is 12.2. If each observation is multiplied by 2 and then 3 is added, the new mean is

For the data, 0, 1, – 1, 1, 2, which of the following is TRUE?

The median of n observations arranged in ascending order when n is even

A data having two modes is

The mode of the data 8,5, 3, 8,3,6, 5, 3, 7, 5 and 11 is

The difference between any two lower limits is called

The mean of the observations x – 1, x and x + 1 is