Question

is there average of 8 observations is 5 if an observation 12 is removed then the average of new set of observations is​

Answer 1

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Answer 2

Step-by-step explanation:

Correct question:-

The average of 8 observations is 5. If an observation 12 is removed, then the average of new set of observations is

Answer:

4.

Solution:

Given : The average of 8 observations= 5

An observation 12 is removed.

To find: The average of new observations.

Explanation: The original value of 8 observations = Average value of the observations× No.of observations = 40.

An observation 12 is removed, so 40-12 = 28

The new value of observations = 28.

Now, No.of observations after removing an observation = 7 observations

The average of 4 observations = Total value of the observations ÷ No.of observations = 28÷7 = 4.

Therefore, the average of new set of observations is 4.