pls help me in this question.
find p such that 15:p::21 : 7
Answers
Answered by
2
Solution:
Given:
Mean = 7.5
xi - 3 | 5 | 7 | 9| 11| 13 |
fi - 6 | 8 | 15 | p| 8 | 4 |
fixi- 18 | 40 | 105 | 9p | 88 | 52|
Σfi = 41+p
Σfixi = 303+9p
Mean = Σfixi / Σfi
7.5 = (303+9p) / (41 +p)
7.5(41 +p) = 303 +9p
307.5 +7.5 p = 303 +9p
307.5 - 303 = 9p - 7.5 p
4.5 = 1.5 p
p = 4.5 / 1.5 = 3
P = 3
Hence, the value of p is 3.
HOPE THIS WILL HELP YOU...
Answered by
4
Answer:
p = 5
Step-by-step explanation:
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