mean of 10 observatins is 163.Then find the sum of observation
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Answered by
1
Answer:
ANSWER
The mean of 10 observations is 16.3.
By error, one observation id got registered as 32 instead of 23
16.3=
10
x
1
+x
2
+...x
10
x
1
+x
2
+...x
10
=163
Let λ=−32+23+x
1
+x
2
+...x
10
λ=−9+163
λ=154
So, required mean is
10
154
=15.4
Answered by
1
Sum of the 10 observations = 16.3 * 10 = 163.
But let us remove the wrong
data observation, then sum of 9
correct observations is = 163 - 32 131.
Now add the correct value of the 10th
observation 131 + 23 154
Now find the mean = 154 /10 = 15.4
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