Question

find the mean of the following data : class 0-6 , 6-10 , 10 - 14 , 14 -20 , 20 -28 , 28-38 frequency f : 11 10 7 4 4 3​

Answer 1

Step-by-step explanation:

class. frequency. x. f×x

0-6. 11. 3. 33

6-10. 10. 8. 80

10-14. 7. 12 84

14-20. 4. 17. 68

20-28. 4. 24. 96

28-38. 3. 32. 96

f=29. FX=427

formula=mean= sigma FX

sigma f

= 427\29

mean= 14.7

Answer 2

Step-by-step explanation:

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