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Statistical & Displays
Mean, Median, Mode
Range and IQR
100
Is this a statistical question? How many students are wearing Jordan's in this class?
No.
100
What is the mode? 1.06,9.3,59.59,6.01,25.17,1.06,6,1.06,0.7
1.06
100

what is the range:

5    10    17     19     35.3     34      56    7     1.7

56 - 1.7 = 54.3

200

What is the first step you need to do with the data below to make a box plot?

5, 3, 2, 10, 8, 15, 9, 10, 5, 6

Put the data in order

200
What is the median? 93, 47, 37, 49, 25, 12, 13, 57
(37 + 47)/2 = 42
200

what is the median

3,3, 4, 5, 6, 10, 15, 17, 18, 19, 21, 29

12.5

300

What are the measures of center that you can find or calculate by looking at a dot-plot?

mean, median, mode

300
What is the median? 103, 2, 23, 156.5, 105.5, 145
104.25
300

what is the QUARTILE 3? 

29 34 39 43 73 91 198

91

400

125 people were surveyed about their pets.  50 said dogs, 40 said cats, 10 said fish, and 25 said other.

What is the percent of people who answered fish?

8%

400
Whats the mean? 1, 1, 2, 3, 4, 4, 5, 6, 7, 8
41/10 = 4.1
400

What is QUARTILE 1? 

35, 49, 53, 69, 69, 77, 84

49

500

What does the Mean Absolute Deviation (MAD) represent?

The average distance the data is from the mean.

500
What is the average grade for a student who's grades are: 13, 27.3, 69, 69, 23, 97.
49.7
500

Find the IQR of the data set. 

30, 45, 46, 72, 78, 89, 99, 100, 100

Median = 78 q1 = 45.5 q2 = 99.5 iqr = 99.5-45.5 = 54