Question

6, 3, 4, 7, 3, 7, 8, 5, 7 i. Find the median ii. Find the mean iii. Find the modal mark

Answer 1

i. 6

ii.
`5(5)/(9)`

iii. 7

Explanation:

First organize the data from least to greatest. 3,3,4,5,6,7,7,7,8

To find the median, remove the extremes from the data over and over.

3,4,5,6,7,7,7

4,5,6,7,7

5,6,7

6

To find the mean, add all of the numbers and divide by 9

3+3+4+5+6+7+7+7+8=50

50/9=
`5(5)/(9)`

To find the modal mark, simply find the number present most in the data set: 7(occurs 3 times)

Hope it helps <3