Test on Measures of central tendency

find the Mean of : 14,32,66,24,20,22,9,8

• 24.5

• 24.3

• 24

• none

_____ divides the data into four equal parts

• Quartiles

• Deciles

• Percentiles

• none

To calculate the median , all items of a series needs to be arranged in an

• Ascending

• Descending

• ascending and descending

• none

If mean and mode of some data are 4 and 10 then its median will be___

• 1.5

• 5.3

• 16

• 6

find the median of the given set of the numbers: 2,6,6,8,4,2,7,9

• 6

• 8

• 4

• 5

if the mode of the following data set is 7 , then the value of k in the data set 3,8,6,7,1,6,10,6,7,2k+5,9,7,13 is

• 3

• 7

• 4

• 1

Let the average of three numbers is 16. If two of the numbers are 8 and 10, what is the remaining number

• -30

• 18

• 12

• 30

which of the following are under the measures of dispersion ?

• S.D

• M.D

• Range

• all og the above

While calculating the standard deviation, the deviations are only taken from

• 1. The mode value of a series

• 1. The median value of a series

• 1. The quartile value of a series

• 1. The mean value of a series

The numerical value of a standard deviation can never be _________.

• negative

• zero

• larger than varience

• none