The mean of 24 numbers is 35 . If 3 is added to each number , what will be the new mean.?
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The mean of 24 numbers is 35 . If 3 is added to each number , what will be the new mean.?
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Answer:
38
Step-by-step explanation:
Let us consider 24 numbers as
x1 + x2 + x3.....x24
So the mean will be
x1 + x2 +.....x24/24 = 35....(j)
When we add 3 to each
x1 + 3 + x2 + 3.......x24 + 3
The mean will be
x1 + 3 + x2 + 3...x24 + 3/24
= x1 + x2...x24 + 24(3) /24
= x1 + x2 ....x24/24 + (24×3/24)
= 35 + (72/24) [using (i)]
= 35 + 3
= 38
Therefore the new mean will be 38.
hope it helps.
Answer:
hi khushi I am Krishna what is your name