Statistical or Not
Mean, Median, Mode
MMMR & IQR
Displays
What do You Mean?!?!
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 3 4 56 7 1.7
35.3 - 1.7 = 33.6
100
Find the Range and IQR
What is Range = 8
and IQR = 5?
100
Find the mean of the following data:
3, 6, 2, 5
4
200
Should a statistical question have a single answer?
Multiple Answers. Includes typical data
200
What is the median?
93, 47, 37, 49, 25, 12, 13, 57
(37 + 47)/2 = 42
200
what is the median
33 4 5 6 10 15 17 18 19 21 29
4 5 6 10 15 17 18 19 21 29 33
17 = med
200
What is the median number of eggs laid?
What is 6?
Hint: the median is marked by the line inside the box
200
Find the mean of the following data:
15, 7, 22, 12
14
300
Is this a statistic question?
What is the typical favorite sport of Redwood student?
Yes
300
What is the median?
103, 2, 23, 156.5, 105.5, 145
104.25
300
Find the median and mode of the following data:
53, 13, 34, 41, 26, 61, 34, 13, 69
Median: 34
Mode: 13, 34
300
Which data displays work well with numerical data? Name two.
Histograms, dot plots, box plots
300
Find the mean of the following data:
24, 36, 29, 31
30
400
IS this a statistical question?
Does the Watson Family watch TV?
no
400
Whats the mean?
1, 1, 2, 3, 4, 4, 5, 6, 7, 8
41/10 = 4.1
400
A student wants an average of 85 on 4 tests. So far they have 80, 90, and 70. What must they score on the last test?
100
400
What percentage laid at least 3 eggs?
What is 75%?
400
Find the mean of the following data:
93, 87, 89, 92, 95, 84
90
500
Is this statstical?
What is the average weight of 11th grade students in America?
yes
500
What is the average grade for a student who's grades are: 13, 27.3, 68, 68, 23, 97.
49.38
500
Colors of shirts sold: red, blue, green, orange.
Each sold the same amount. What is the mode?
no mode
500
What percentage laid more than 8 eggs?
What is 25%?
Hint: each section of the box plot represents 1/4 or 25% of the data
500
Find the mean of the following data:
23, 15, 8, 12, 26, 5, 22, 9
15