Question

The median of observation a-5,a+1,a+2,a-3?a is 10 find a?​

Answer 1

Answer:

4a-5=10

a=15/4

a=3.5.

.......

Answer 2

Answer:

10

Explanation:

Step 1 :

Arrange the numbers in the increasing order.

Here : a-5, a-3, a, a+1, a+2

Step 2 :

Count the no. of observations. If the number is odd, then round of the number. The observation at that position will be the answer.

Here : the total no. of observations is 5. So 5/2 = 2.5 . Rounding off the number, it becomes 3. Hence, the observation at 3rd position is the median.

In this case, a is at 3rd position, so a is the median.  ..................... (1)

Also, as per the question, the median is 10.  .................................... (2)

Combining 1 & 2

a = 10.