Math, asked by kumarimuskan89027, 4 months ago

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​

Answers

Answered by palakgupta2395
2

Answer:

mean = sum of all observation/ no.of observation

mean = 20/6

mean= 3.33

...Here is ur answer...

Answered by SandeepAW
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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