How can we divide the salary data {199,200,202,203,207,208,208,209,210,210,210,210,212,213,214,215,217,218,218,221}{199,200,202,203,207,208,208,209,210,210,210,210,212,213,214,215,217,218,218,221} in six classes?

1 Answer
Shwetank Mauria
Nov 3, 2016

Please see below.

Explanation:

The difference between the smallest number being 199199 and the largest being 221221 is 2222.

Hence let us divide them in 66 as follows:
198-201198−201, 202-205202−205, 206-209206−209, 210-213210−213, 214-217214−217 and 218-221218−221

Now let us put al salaries in relevant classes and it is

198-201 - color(red)(199-200)199−200
202-205 -color(red)(203-202)203−202
206-209 -color(red)(209-208-207-208)209−208−207−208
210-213-color(red)(212-210-210-210-210-213)212−210−210−210−210−213
214-217-color(red)(217-215-214217−215−214
218-221-color(red)(221-218-218221−218−218

Hence frequency distribution is

198-201-color(blue)2198−201−2
202-205-color(blue)2202−205−2
206-209-color(blue)4206−209−4
210-213-color(blue)6210−213−6
214-217-color(blue)3214−217−3 and
218-221-color(blue)3218−221−3

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