the mean of a data consisting of 25 values is 40. The mean of first 12 observations of a data is 42 ar
that of last 12 observations is 37. Find the middle-most observation of the data.
Answers
Answered by
1
Answer:
middle most observation =
40 + 42 + 37
----------------------
3
= 119
---------
3
= 39.67
approximately. = 40.
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Answered by
5
Answer:
54
Step-by-step explanation:
The mean of a data consisting of 25 values is 40.
⇒ Sum of the 25 values = 25 x 40 = 1000
The mean of first 12 observations of a data is 42.
⇒ Sum of the first 12 observations = 12 x 42 = 504
The mean of the last 12 observations is 37.
⇒ Sum of the last 12 observations = 12 x 37 = 444
Middle-most observation = 1000 - 504 - 444 = 54
Answer: The middle-most observation is 54.
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