How do you find the mean?
Add up all the #'s and divide by how many #'s there are.
How do you find the median and what if there is more than one?
Put the #'s in order from least to greatest order. Find the middle number. Add the two and divide by 2.
How do you find the mode?
The # that appears the most.
How do you find the range?
Maximum - minimum
How do you find the IQR?
Find the median of the lower quartile and the upper quartile and then subtract.
Q3 - Q1
Find the mean:
3, 3, 5, 8, 9, 12, 12, 14
Round to the nearest hundredth.
8.25
Find the median:

28
Find the mode:

39
Find the range:
9, 11, 15, 18, 22, 22, 25, 27, 30
21
Find the IQR:

10
Find the mean:
11, 15, 17, 19, 20, 24
Round to the nearest tenth.
17.7
Find the median:
7, 7, 9, 10, 10, 11, 13, 13, 13, 14, 14, 18, 20, 23, 25
13
Find the mode:
16, 16, 16, 18, 18, 18, 18, 20, 20, 20
18
Find the range:

17
Find the IQR:

5
Find the mean:
18, 21, 24, 27, 31, 33
Round to the nearest tenth.
25.7
Find the median:
16, 40, 18, 37, 20, 35, 20, 31, 23, 29, 26, 28
27
Find the mode:
3, 6, 9, 12, 18, 27
None
Find the range:

30
Find the IQR:

10
Which mean of the data is larger?
A: 7, 7, 9, 10, 10, 11, 13, 13, 13, 14, 14, 18, 20, 23, 25
OR
B: 3, 3, 5, 8, 9, 12, 12, 14
A
Find the median:
33, 18, 21, 31, 27, 24
Round to the nearest tenth.
25.5
What is it called when there are two modes?
Bimodal
Find the range:
12, 56, 4, 18, 8, 67, 42, 2, 65
65
Find the IQR:
4, 6, 6, 8, 9, 9, 10, 10, 12, 15, 19, 26, 28, 33, 38, 40, 41, 46, 48, 52
30