WorksheetsStatistics
Total questions: 20
Worksheet time: 40mins
What does the MEAN tell us about data?
Most Often
Average
Middle
Big minus Small
What is the MIDDLE number called in a set of data?
mean
range
mode
median
Where do we get statistical samples of data from?
population
other samples
the internet
surveys
The MODE of a data set is...
The middle number.
The average of the data.
Seen the most often.
The difference between the biggest and smallest number.
Carol wants to find out the favorite food of students at middle school. She asks the boys' basketball team about their favorites foods.
random
biased
A phone company wants to know what everyone in the United States thought about the new Iphone. The company asks 1 out of every 100 phone users to fill out a survey. Is this sample random or biased? Why?
Biased, because phone users don't represent everyone.
Random, because they picked 1 out of every 100 people.
To found out if students like the way teachers grade their papers, you survey the students on the Honor roll.
biased
random
Find the median for this data set. 21,25,19,36,54
21
25
36
33
Find the median: 9, 8, 4, 10, 6
4
8
7
3
Set of methods to obtain data and then organize, summarize, present, analyze, interpret and reach conclusions based on the data
Statistics
Population
Sample
Conclusion
It is a subset of selected members
Population
Sample
Qualitative data
Find the mean: 23, 24, 15, 6, 28, 4
100
24
15
16.6
Find the mode: 1,1,1,3,5,5,7
1
3
5
5.5
What is the mode of: 2, 3, 3, 4, 6, 4, 7, 4, 7
3
4
7
4.4
What is the Range? 2,2,3,6,8,9
7
5
10
33
Whats the Range? 2,2, 3,5,5,7,8
4
2
6
8
Why is this survey important?
Provides peace around the world
Provides data
Is the law
Helps the environment
Find the mean: 6,9,17,3
29
35
9.25
8.75
Open ended questions...
answers in yes or no
have one short answer
requires more explanation
can have many responses
Close ended questions...(Check all that apply)
require more explanation
Has a definite answer
has many reasons/explanations
Is short yes/no answer
