Question

5) What is the range of the data? 74, 70, 79, 69, 71, 83, 81, 736) What is the range of the data? 12, 16, 19, 13, 11, 12, 15, 19, 19, 137) What is the range of the data? 74, 83, 76, 74, 93, 72, 85, 778) What is the range of the data? 33, 19, 41, 25, 78, 18, 72, 53, 459) What is the mean of the set of data? 3, 8, 8, 3, 3, 9, 3, 3, 7, 810) What is the mean of the set of data? 8.8, 10.1, 7.6, 9.6, 9.2, 8,8

Answer 1

The range can be calculated as the difference of the greatest value and the smallest one.

5) The range of the first set is 83 - 70 = 13

6) The range of the second set is 19 - 11 = 8

7) The range of the third set is 93 - 72 = 21

8) The range of the fourth set is 78 - 18 = 60

The mean is the sum of all numbers divided by the amount of numbers.

9) The mean of the fifth set is:

$\frac{3+8+8+3+3+9+3+3+7+8}{10}=5.5$

10) The mean of the sixth set is:

$\frac{8.8+10.1+7.6+9.6+9.2+8.8}{6}=9.017$