Frequency Tables and Dot Plots
Site: | Saylor Academy |
Course: | GKT101: General Knowledge for Teachers – Math |
Book: | Frequency Tables and Dot Plots |
Printed by: | Guest user |
Date: | Saturday, May 18, 2024, 11:03 AM |
Description
Sometimes it is helpful to know how many times a given data point occurs in the set of numbers. This is easy to find out if the data is organized in a frequency table or a dot plot. Watch the video and complete the corresponding interactive exercises.
Table of contents
- Representing data
- Frequency tables & dot plots
- Practice
- Data set warm-up - Questions
- Data set warm-up - Answers
- Creating frequency tables - Questions
- Creating frequency tables - Answers
- Creating dot plots - Questions
- Creating dot plots - Answers
- Reading dot plots & frequency tables - Questions
- Reading dot plots & frequency tables - Answers
- Estimate center using dot plots - Questions
- Estimate center using dot plots - Answers
Representing data
Source: Khan Academy, https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License.
Frequency tables & dot plots
Practice
Data set warm-up - Questions
- The following table shows the number of raisins in a scoop of different brands of raisin bran cereal.
How many brands of raisin bran are shown in the table?
_______ brands
_______ baskets
How many kindergarten teachers have at least 13 students in their class?
________ kindergarten teachers
-
The following data points represent the number of jokers in each of Benjamin's decks of cards.
What is the most frequent number of jokers?
________ jokers
Below is the volume of gas (in liters) in the tank of each race car in today's race.
How many drivers were in today's race?
________ drivers
Nate weighed each of his cats. He found that Betty weighed kilograms, Fido weighed 2 kilograms, Spot weighed kilogram, Yogi weighed kilograms, and Smarts weighed kilograms.
What was the weight of Nate's heaviest cat?
________ kg
How many stores made more than 10 sundaes on Monday?
________ stores
Data set warm-up - Answers
1. 4 brands of raisin bran are shown in the table.
2. The fewest baskets a student made was 6.
3. 2 kindergarten teachers have at least 13 students in their class.
4. The most frequent number of jokers is 2.
5. 6 drivers were in today's race.
6. The weight of Nate's heaviest cat was .
7. 3 stores made more than 10 sundaes on Monday.
Creating frequency tables - Questions
1. The data below shows the number of times that each of the eight students in the Wright Alternative Learning Program has been suspended from school.
Using this data, create a frequency table.
2. The following data points represent the number of holes that moths ate in each of Grandma Marion's dresses.
Using this data, create a frequency table.
3. The data below shows the number of children that each of the eight members of Moms' Club has.
Using this data, create a frequency table.
4. The following data points represent the number of players on the Russian Bears volleyball team that were injured in each match this year.
Using this data, create a frequency table.
Creating dot plots - Questions
1. The frequency table below shows how many hours Kim worked each weekend since she started her new job.
Using this data, create a dot plot where each dot represents a weekend.
2. Hugo competes in fishing tournaments. The following data points represent how many fish he caught in each tournament.
Using this data, create a dot plot where each dot represents a tournament.
3. The frequency table below shows the number of trick-or-treaters at Cam's house each year since he started putting pumpkins in his yard.
Using this data, create a dot plot where each dot represents a year.
4. The following data points represent the number of losses the Minnesota Igloos have had each season.
Using this data, create a dot plot where each dot represents a season.
Creating dot plots - Answers
Reading dot plots & frequency tables - Questions
1. The following dot plot shows the number of cavities for each patient seen by Dr. Hall last week. Each dot represents a different patient.
What was the minimum number of cavities that a patient had?
_____ cavities
2. The following frequency table shows the number of strokes it took each golfer to complete Hole
What was the most frequent number of strokes?
______ strokes
3. The following dot plot shows the height of each toddler at Ms. Cabrera's daycare. Each dot represents a different toddler.
How many toddlers are in Ms. Cabrera's daycare?
______ toddlers
4. The following frequency table shows the number of Jui's pictures that have been published in each of the local magazines.
What is the most frequent number of pictures?
______ pictures
Reading dot plots & frequency tables - Answers
1. The minimum number of cavities that a patient had was 0.
2. The most frequent number of strokes was 3.
3. 15 toddlers are in Ms. Cabrera's daycare.
4. The most frequent number of pictures is 2.
Estimate center using dot plots - Questions
1. Ms. Munoz had students in three class periods write essays for a diagnostic test. The following dot plots shows the scores from each class. Each dot represents a different student's score.
Order the class periods from least to greatest typical score.
Put the graph with the least typical value on top.
2. The following dot plot shows the number of weekly challenge questions each of the 30 members the Math Bowl team answered correctly last season. Each dot represents a different member.
Which of the following is a typical number of challenge questions one member answered correctly?
Choose 1 answer:
(A) 0 questions
(B) 3 questions
(C) 6 questions
(D) 10 questions
3. The following dot plot shows the number of cavities each of Dr. Vance's 63 patients had last month. Each dot represents a different patient.
Which of the following is a typical number of cavities one patient had?
Choose 1 answer:
(A) 2 cavities
(B) 5 cavities
(C) 7 cavities
(D) 15 cavities
4. The following dot plots show the numbers of people per table at Kingsley's Bingo Hall on three different nights. Each dot represents one of the 20 tables.
Order the nights from least to greatest typical number of people per table.
Put the graph with the least typical value on top.
Estimate center using dot plots - Answers
1. This is the correct sequence of class periods from least to greatest typical score:
2. Of the choices, it is reasonable to say that a member typically answered about 10 challenge questions correctly.
3. Of the choices, it is reasonable to say that a patient typically had about 2 cavities.
4. This is the correct sequence of nights from least to greatest typical number of people per table: