if mean of any distribution is 25.4 and Ef= 52+f and Efx= 1397 find F
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Answer:
The answer is 3
Step-by-step explanation:
Given data:
mean of any distribution = 25.4
∑f = 52+f
∑fx = 1397
mean of the data = ∑fx/ ∑f
= 1397/52+f
from given data
1397 = 25.4(52+f)
1397 = 1320.8+ 25.4f
25.4f = 1397 - 1320.8
25.4 f = 76.2
f = 3
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