Calculate Mean Deviation of the following data:

Ans: 2.18

Calculate Standard Deviation from the following data:

Ans: Rs. 20.49

Find the mean deviation from the median of the following data:

100, 160, 170, 180, 190, 200

Ans: 23.33

Compute the mean deviation from mean of the following data:

10, 15, 16, 20, 24, 25, 30

Ans: 5.43

Find the semi-interquartile range of the following data:

158, 156, 162, 161, 163, 164, 165

Ans: 3

Find the standard deviation of the duration of phone calls in seconds:

4, 6, 10, 12, 18

Ans: 4.9 seconds

Find the semi interquartile range. The weights(in kg) of 7 persons are given below:

58, 26, 42, 23, 34, 45, 22.

Ans: 11 kg

Calculate the mean deviation taken from the median of the data:

35, 40, 45, 50, 55, 60, 65

Ans: 8.57

Some measurements are made and the results are given:

67, 83, 75, 70, 52, 46, 51

Find the quartile deviation.

Ans: 12

Find the mean deviation from the mean of the following data:

200, 208, 210, 160, 220, 250

Ans: 18.6

Calculate the mean deviation from median of the following data:

Ans: 2.4

Calculate the mean deviation from mean of the following frequency table.

Ans: 2.13

Find the standard deviation of the following data:

10, 15, 25, 20, 30, 40, 50, 10

Ans: 13.46

Calculate the mean deviation from the mean of the following frequency table:

Ans: 4.7

Two factories A and B pay their employees as follows:

\({\overline{\mathrm X}}_{\mathrm A}=34.5\;\mathrm{and}\;{\mathrm\sigma}_{\mathrm A}=5;\;{\overline{\mathrm X}}_{\mathrm B}=28.5\;\mathrm{and}\;{\mathrm\sigma}_{\mathrm B}=4.5.\)

Determine which factory has greater variability in wages.

Ans: Factory B