find mean ci 10 to 15, 15 to 20 ,20 to 25 ,25 to 30, 30 to 35 ,35 to 40 and f 5 ,1 ,4 ,2, 3,5
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Answered by
2
Answer:
mean = sum of all observation/ no.of observation
mean = 20/6
mean= 3.33
...Here is ur answer...
Answered by
1
Answer:
ci. f. x. f(x).
10-15. 5. 12.5. 5×12.5=62.5.
15-20. 1. 17.5. 1×17.5=17.5.
20-25. 4. 22.5. 4×22.5=90.
25-30. 2. 27.5. 2×27.5=55.
30-35. 3. 32.5. 3×32.5=97.5.
35-40. 5. 37.5. 5×37.5=187.5.
€f=20. €f(x)=510.
Mean=€f(x)/€f.
=510/20.
=25.5.
The symbol is not correct.
I think this is your answer.
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