Question

If the median of the values: 3, 7, k is 5 then mean =
(a) 5
(b) 11
(c) 7
(d) None of these​

Answer 1

Answer:

(d) none of these is the right answer

Answer 2

The mean is (a) 5.

Given - Median

Find - Mean

Solution - The median is 5, which is middle value. On arranging the numbers in increasing order, we get the data - 3, 5, 7. Hence, the value of k is 5.

Mean = sum of observations/number of observations

Keep the values in formula to find the mean of given numbers.

Mean = 3 + 5 + 7/3

Performing addition in numerator

Mean = 15/3

Performing division between numerator and denominator

Mean = 5

Hence, the mean is (a) 5.

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