Answer :
<u>Given</u><u> </u><u>-</u>
- Books read by aya = 5
- Total number of books read by them = 14
<u>To</u><u> </u><u>find</u><u> </u><u>-</u>
- How many books does luka reads.
<u>Solution</u><u> </u><u>-</u>
Here, total number of books is 14 and books read ny aya is 5 . To find the luka reads We'll subtract total number of books read by them from books read by aya.
→ 14 - 5
→ 9
<u>There</u><u>fore</u><u>,</u><u> </u><u>9</u><u> </u><u>books</u><u> </u><u>read</u><u> </u><u>by</u><u> </u><u>luka</u><u>.</u><u> </u>
Answer:
For a data set of N elements:
{x₁, x₂, ..., xₙ}
The mean is:

The mean absolute deviation is:

And the population standard deviation is:

In this case, our set has 5 elements, and the set is:
{2, 4, 6, 9, 14}
The mean of this set is:

The mean absolute deviation is:

And the population standard deviation is:
