Answer:

4.

Mean: 81.9 or rounding off to 82

Median: 83.7 or rounding off to 84

Mode: 0

5.

Mean: 153

Median: 155

Mode: 0

Step-by-step explanation:

In finding the MEAN we need to add all up the numbers and then divide the sum by the number of values.

Given:75.2+81.5+70.4+88.1+90.7+85.9 = 491.8/6 =81.9or 82

In finding median we need to arrange all numbers in ascending order the number that in the middle is the median, if there are 2 middle number add it and then divide 2.

In Identifying MODE we just need to look for a number that is frequently used

Ex. 4 8 9 4 3 4 7 6

the mode is 4 because it is frequently used

I hope it helps..