Question

A data of 10 observations has a minimum value 15 and maximum value 25 . What is the mean of the data ? 1. 12 2. 15 3. 21 4. 27 ?

Answer 1

HOPE THIS HELPS U. . . @MP. ..

Answer 2

Answer:

The correct option is 3.

Step-by-step explanation:

It is given that the data of 10 observations has a minimum value 15 and maximum value 25.

The mean is the average value of the data set.

$Mean=\frac{\text{Sum of observations}}{\text{Number of observation}}$

The value of mean always lies between lower limit and upper limit.

$15<mean<25$                     ....(1)

The value 12 is less that the lower limit and 27 is greater that upper limit, therefore option 1 and 4 are incorrect.

Only the value 21 satisfies the inequality (1), so option 3 is correct.