This document contains a lesson on statistics vocabulary and concepts for students. It defines key terms like statistics, statistical questions, and dot plots. It provides examples of each term and questions for students to practice. Statistical questions are those that anticipate a variety of answers, like "How many video games do you have?". A dot plot visually represents data using dots above a number line, making it easy to see patterns in the data and determine the frequency of each value. Students are asked to label a sample dot plot and answer questions about describing and interpreting the data set.

1. Name _______________________________ Date _________________________
Mrs. Labuski / Mrs. Portsmore Period _____ Unit 12 Lesson 1Statistics
OC p. 175-176
VOCABULARY DEFINITION EXAMPLE
statistics
The process of collecting,
organizing, and interpreting data.
Statistics is used to plan and make
future decisions and to answer
statistical questions.
statistical
question
A question that has many
different, or variable, answers.
SEE BELOW
Explain why the question “How many video games do you have?” is a statistical question.
The question anticipates a variety of answers.
Come up with some examples of your own.
Statistical Questions Non Statistical Questions

2. VOCABULARY DEFINITION EXAMPLE
dot plots
A visual display in
which each piece of
data is represented by a
dot above a number
line.
Tina asked her friends how many songs they downloaded this week and the results are shown in
the table.
Number of Songs Downloaded
1, 3, 1, 4, 2, 3, 2, 6, 3, 3
How many songs were downloaded?10
What was the least number of downloads? 1
What was the greatest number of downloads? 6
Label the number line from the least number of downloads to the great number of downloads.
For each data value, draw a dot above the appropriate number. If a value repeats, draw a second
dot directly about the previous dot.
How does a dot plot help you describe a data set?
A dot plot can show where data are clustered and where there are peaks/gaps in the data.
The dot plot above shows a cluster at 1, 2, 3 with a peak at three so most of Tina’s friends
downloaded three songs. There’s a gap between 4 and 6.
The frequency of a data value is the number of times it occurs in a data set. How can you tell the
frequency of a data value by looking at a dot plot?
Count the number of dots above the data value.

3. Name _______________________________ Date _________________________
Mrs. Labuski / Mrs. Portsmore Period _____ Unit 12 Lesson 1Statistics
OC p. 175-176
VOCABULARY DEFINITION EXAMPLE
statistics
statistical
question
SEE BELOW
Explain why the question “How many video games do you have?” is a statistical question.
_____________________________________________________________________________
_____________________________________________________________________________
Come up with some examples of your own.
Statistical Questions Non Statistical Questions

4. VOCABULARY DEFINITION EXAMPLE
dot plots
Tina asked her friends how many songs they downloaded this week and the results are shown in
the table.
Number of Songs Downloaded
1, 3, 1, 4, 2, 3, 2, 6, 3, 3
How many songs were downloaded? _____________________________________
What was the least number of downloads? _______________________________________
What was the greatest number of downloads? ____________________________________
Label the number line from the least number of downloads to the great number of downloads.
For each data value, draw a dot above the appropriate number. If a value repeats, draw a second
dot directly about the previous dot.
How does a dot plot help you describe a data set?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
The frequency of a data value is the number of times it occurs in a data set. How can you tell the
frequency of a data value by looking at a dot plot?
__________________________________________________________________________