Answer:
Step-by-step explanation:
Given
Required
Determine the percentage change
Percentage change is calculated as;
<em>Hence, the percentage change is approximately 8.8%</em>
Median is the middle number.
Rearrange the numbers to smallest to biggest.
70, 77, 80, _, 82, 87, 88
If the median of the data set is 81 the middle number needs to be 81.
So the missing number is 81.
70, 77, 80, 81, 82, 87, 88
If looking for the answer it would be 0, 3, -6, 7