Answer:
Mean: 79
Median: 81
Range: 11
Explanation:
To figure out the mean you add the heights together (81 + 82 + 84 + 75 + 73 + 75 + 83 = 553) and divide your answer by the amount of people (7).
To figure out the median you put the numbers from smallest to largest (73 75 75 81 82 83 84) and then find the middle number (81).
To figure out the range you take away the smallest height from the largest height (84-73 = 11).
Hope this helps :)
