if the mean of the following data is 15 , Find P . class interval - 5-10 10-15 15-20 20-25 25-30. f- 6 P 6 10 5
Answers
Answered by
1
Answer:
p = 10................m..............
Answered by
1
Answer:
p=43
Step-by-step explanation:
xi fi fixi
7.5 6 45
12.5 p 12.5p
17.5 6 105
22.5 10 225
27.5 5 137.5
Mean = £fixi / £fi
15 = 512.5 + 12.5p / 27 + p
15 (27+p) = 512.5 + 12.5p
405 + 15p = 512.5 + 12.5p
15p - 12.5p = 512.5 - 405
p= 43
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