I've got a question
Dots, dots, and more dots
Is this centered?
Graph it!
100
Asking a room full of sixth graders what grade they are in.
Not a statistical question because the answers wouldn't vary
100
What are the minimum and the maximum?
Minimum = 0
Maximum = 7
100
Find the median and mean of the following data:
3, 5, 6, 6, 8, 9, 11, 12
median = 7
mean = (3 + 5 + 6 + 6 + 8 + 9 + 11 + 12)/8
mean = 7.5
100
Use the dot plot to find mean and median.
median = 2
mean = (0 + 0 + 1 + 2 + 2+ 3 + 3 + 5)/8
mean = 16/8 = 2
200
Asking a room of middle school students how many pieces of pizza they usually eat for dinner.
Statistical because answers will vary
200
What are the minimum, maximum, and median?
minimum = 0
maximum = 3
median = 1
200
Find the mean and median of the following data:
15, 17, 19, 20, 20, 27
median = 19.5
mean = (15 + 17 + 19 + 20 + 20 + 27)/6
mean = 19.7
200
Make a dot plot using the data below.
300
Asking sixth graders how many classes they have in middle school.
Not statistical because answers will almost not vary at all.
300
Find the minimum, maximum, and the median.
minimum = 5
maximum = 10
median = 7
300
Find the mean and median of the following data:
12, 5, 9, 11, 4, 8
median = 4, 5, 8, 9, 11, 12
median = (8 + 9)/2 = 8.5
mean = (4 + 5 + 8 + 9 + 11 + 12)/6
mean = 8.2
300
Make a histogram of the data below.
400
Asking a group of middle school students minutes a week they spend in a car.
Statistical question because answers will vary
400
What are the minimum, maximum, and median?
minimum = 1
maximum = 4
median = 2
400
Find the mean and median of the data below:
18, 7, 12, 9, 15, 6
median = 6, 7, 9, 12, 15, 18
median = (9 + 12)/2 = 10.5
mean = (6 + 7 + 9 + 12 + 15 + 18)/6
mean = 67/6 = 11.2
400
Find the median and mean from the dot plot below.
median = 4
mean = (1+2+3+3+4+4+4+5+5+7)/10
mean = 38/10 = 3.8
500
Asking a group of middle school students what size their shoes are.
Statistical because answers will vary.
500
Find the minimum, maximum, and median.
minimum = 2
maximum = 10
median = 6
500
Find the mean and median of the following data:
20, 11, 19, 15, 13
median = 11, 13, 15, 19, 20
median = 15
mean = (11 + 13 + 15 + 19 +20)/5
mean = 78/5 = 15.6