Question

The following table gives the daily income of 50 workers of a factory:
Daily income (in) 100-120 120-140 140-160 160-180 180-200
Number of workers
I 8 I 6 I 10
Find the mean, mode and median of the above data.​

Answer 1

Mean =   145.2  ,  Median =  138.57 & Mode = 125

Step-by-step explanation:

Class            Mean    Frequency     cf                Class mean * Frequency

100-120       110         12                   12                   1320

120-140       130         14                   26                  1820

140-160       150         8                    34                  1200

160-180       170          6                    40                  1020

180-200      190         10                   50                  1900

                           Total    50                                   7260

Mean = 7260/50  =  145.2

Median 50/2 = 25  lies  120-140

Median = 120 +  20 * ( 25 - 12)/14

= 120 + 18.57

= 138.57

Max frequency 14 lies in 120-140

Mode = 120  +  20 *( 14 - 12) /( 14 - 12 + 14 - 8)

= 120 + 5

= 125

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Answer 2

Answer:

Correct answer hopefully it helps you