Question

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SOLVE THIS ALL!!!❤

ANSWERR IN STEP DEVIATION METHOD!!!❤TWO SUMS IN STEP DEVIATION METHOD ONLY!!!

FIND THE MEAN OF THE FOLLOWING FREQUENCY DUSTRIBUTION!!!!

CLASS
0-50
50-100
100-150
150-200
200-250
300-350

FREQUENCY
10
15
30
20
15
8
2

(2)
FIND THE MEAN WAGE OF 200 WORKERS OF A FACTORY WHERE WAGES ARE CLASSIFIED AS FOLLOWS:

CLASS
100-150
150-200
200-250
250-300
300-350
350-400
400-450
450-500
500-550

FREQUENCY
4
8
14
42
50
40
32
6
4

I WANNA THE ANSWERS OF ALL QUESTIONS!!!❤
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Answer 1

Please see the picture.......!!!!!