Estimate the mean (show your work) using the data below: interval freq 0-2 7...

Question

Question

Estimate the mean (show your work) using the data below:

interval freq

0-2 7

3-5 10

6-8 3

Show work

Answer 1

Answer #1

Midpoint = lower value + Upper value / 2

For interval 0-2 ,

midpoint = 0 + 2 / 2 = 1

Similarly,

For interval 3 - 5 , midpoint = 4

For interval 6-8 , midpoint = 7

Let x be the midpoint and f be the frequency.

Mean = X * f / f

= (1 * 7 + 4 * 10 + 7 * 3) / (7 + 10 + 3 )

= 3.4

Answer 2

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