Random
Measures of Center
Box Plots
Histograms
100
The principal wants to get opinions from students. What is the best sampling method?
Convenient Sampling, Random Sampling or Voluntary Sampling
Random Sampling
100
Find the mean of the data.
10, 11, 15, 10, 14
12
100
What is the maximum?
30
100
How many people participated in the survey?
20
200
How many dogs does Ms. Ceballos have?
2!
Mochi and Boba
200
Find the median of the data set.
12, 15, 18, 14, 13, 20, 21, 12, 17
15
200
What is the median?
6
200
How many volunteers worked fewer than 11 hours?
35
300
Name the 5 parts of a box plot.
Minimum, 1st Quartile, Median, 3rd Quartile, and Maximum
300
What is the mode of the data set.
33, 23, 33, 25, 28, 28, 33, 21, 30, 31
33
300
What percent of the data is between 80-86?
25%
300
How many people are less than 40?
6
400
What is the first step when finding the median?
Ordering values from least to greatest.
400
Find the missing data point in the data set.
Mean = 24
22, 18, 24, 25, 28, x
27
400
What does 92 represent in the box plot?
3rd Quartile
Upper Quartile
400
How many volunteers worked at least 16 hours?
60
500
How do you find the interquartile range?
Q3 - Q1
500
What is the range in the data set?
12, 16, 11, 22, 23, 22, 25, 19, 19, 19, 24
14
500
What percent of the data is 9 or higher
75%
500
What interval would the median fall into? 
70-80