Question

Using step deviation method , calculate the mean for the following data. Height 135 - 140 140 - 145 145 - 150 150 - 155 155 - 160 160 - 165 165 - 170 170 - 175 No.of boys 4 9 18 28 24 10 5 2





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Answer 1

Answer:

135 - 140 140 - 145 145 - 150 150 - 155 155 - 160 160 - 165 165 - 170 170 - 175

Step-by-step explanation:

No.of boys 4 9 18 28 24 10 5 2

Divide The No Boys Then add 500. Between

Answer 2

Step-by-step explanation:

I have done it in hurry

And so many cuts are there avoid them

Hope it helps!!