. Arithmetic mean of 7 numbers is equal to 2.9, and arithmetic mean of other 8...
. Arithmetic mean of 7 numbers is equal to 2.9, and arithmetic mean of other 8 numbers is equal to 2.5. Find the arithmetic mean of all 15 numbers
Homework Answers
Mean =
X /
n
X =
* n
For first 7 numbers
X = 2.9 * 7 =
20.3
For other 8 numbers
X = 2.5 * 8 =
20
Therefore, sum of the values of all 15 numbers = 20.3 + 20 = 40.3
Arithmetic mean of 15 numbers = 40.3 / 15
= 2.6867
Add Answer to:
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