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Asked by singhshrey918 | 29 Dec, 2020, 10:23: PM
(i)
If we multiply each observation by 5, the new mean would be 5 times the original mean.
Therefore, new mean is
(ii)
The class with the maximum frequency is said to be modal.

(iii)

 Concentration of SO2 (in ppm) Frequency Class mark xi di = xi - 0.14 fiui 0.00 - 0.04 4 0.02 -0.12 -3 -12 0.04 - 0.08 9 0.06 -0.08 -2 -18 0.08 - 0.12 9 0.10 -0.04 -1 -9 0.12 - 0.16 2 0.14 0 0 0 0.16 - 0.20 4 0.18 0.04 1 4 0.20 - 0.24 2 0.22 0.08 2 4 Total 30 -31

(iv)
The median class of the given data is 0.08 - 0.12
Answered by Renu Varma | 30 Dec, 2020, 11:35: AM

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