The mean of 30 observations is 12 . If 25 is subtracted from the sum of observations, then remaining sum is:
a)365
b)335
c)385
d)375
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The mean of 30 observations is 12 . If 25 is subtracted from the sum of observations, then remaining sum is:
a)365
b)335
c)385
d)375
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Answer:
335
Step-by-step explanation:
mean=30
let x be sum of no. observation s
therefore,
30=x+25/12
360=x+25
x=335
Answer:
335
Step-by-step explanation:
mean=30
let x be sum of no. observation s
therefore,
30=x+25/12
360=x+25
x=335