1. Find the mean for this list of numbers

2	11
58	76
61	65
85	83
63	80
30	20
67	10
77

2. Consider the data set

3

7

1

4

9

7

8

3

Find the average (mean): Find the median:

3. Here is a data set to use for the problems below:

35.8,

24.9,

53.7,

39.6,

24.1,

31.2,

48.8,

53.7,

18.2,

53.7

What is the mean of this data set? mean = (Round to one decimal place.)

What is the median of this data set? median = (Round to one decimal place.)

What is the mode of this data set? mode = (Round to one decimal place.)

4. The following refer to the following data set:

97.4	104.8	104.8	83.5	71.9
88.6	104.8	89.6	67	79.1

What is the arithmetic mean of this data set? mean = What is the median of this data set? median = What is the mode of this data set? mode = What is the midrange of this data set? midrange =

5. Find the weighted mean. Round your answer to one decimal place.

Deliveries Per Week	Frequency
3	6
6	1
9	2
12	3

Weighted mean = deliveries per week

6. The data below represents the number of T-shirts sold per week by a student who started his own online t-shirt business. Find the weighted mean of the number of t-shirts sold per week. (Round your answer to the nearest tenth if necessary.)

T-Shirts Sold per Week	Frequency
5	4
10	2
15	7
20	1

Weighted mean =