Statistical or Not
Is this a statistical question?
How many students are wearing tennis shoes in this class?
No.
What is the mode?
6, 3, 9, 6, 2, 6, 6, 1
The mode is 6.
(Mode is the number that appears most often.)
Find the minimum.
5, 10, 15, 20, 25
5
What fraction or percentage of data is in each of the 4 sections of a box plot?
25% or 1/4
Should a statistical question have a single answer?
No.
There should be multiple answers.
What is the range?
90, 47, 37, 49, 25, 10, 13, 57
80
What is the maximum number?
5, 10, 15, 20, 25
25
The percent or fraction of data located between Quartile 1 and Quartile 2.
50% or 1/2
Is this a statistical question?
What is the typical favorite sport of MMS students?
Yes, there would be variability in the answers and you would have to collect data to answer it.Yes
What is the median?
103, 23, 156, 105, 143
105
(Put them in order from least to greatest.)
What is the first quartile (Q1)?
1 2 3 4 5 6
2
The type of data display that has bars that touch each other and displays a range of values on the bottom.
A Histogram
Is this a statistical question?
Does the Watson Family watch TV?
no
What's the mean?
1, 1, 2, 3, 4, 4, 5, 6, 7, 7
4
The Mean is the average. Add the numbers then divide by 10 since there are 10 numbers.
40/10 = 4
What is Quartile 3 (Q3)?
1 2 3 4 5 6
5
The type of data display that uses a dot to represent each piece of data.
A Dot Plot
Is this a statistical question?
What is the average weight of 6th grade students in America?
Yes, there would be variability in the answers and you would have to collect data to answer it.
What is the average grade for a student whose grades are listed below?
83, 67, 76, 68, 93, 87
The mean is 79.
Add the numbers then divide by 6.
474 / 6 = 79
What is the median (Q2)?
33, 4, 5, 6, 10, 15, 17, 18, 19, 21, 29
List from least to greatest.
4, 5, 6, 10, 15, 17, 18, 19, 21, 29, 33
17 = median (Q2)
A type of data display that uses a box and whiskers to display the spread of data using 5 numbers.
A Box Plot
(Or a Box-and-whisker Plot)