What is a parallel modified boxplot?

Comparing several box plots on the same scale and then taking conclusions out of them.

in an example where the capacity of the car and number of seats given. shouldnt both be categorical instead of quantitative as there are fixed categories of cars based on number of seats either 2,4,5,6,7 and similarly the capacity is also categorized likewise.

No, they won't be called categorical because the difference between categorical and quantitave data boils to the simple rule whether we can perform valid arithmetic operations on it. For example the no of seats can be 2,4,5,6,7 (True) but you can perform arithmetic operations(addition on it) eg 2 seats + 2seats is 4 seats which makes perfect sense. So it is a quantitative variable in principle. However, suppose there is another variable called color of the car. Now color can be RED BLACK or Blue. In this case performing an arithmetic operation doesn't make sense : RED + BLACK doesn't make valid sense. So color of the car is a qualitative/categorical variable

What has been called here categorical data, has been called quantitative data in the first video of this unit. Just saying..

Nope, these are different. Quantitative represents something whose numeric value matters such as age, height, growth, etc. Qualitative is describing the frequency of something with not mathematical values such as color or weather.

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Bar graphs review

Google Classroom

Bar graphs are a nice way to visualize categorical data. This article reviews how to create and read bar graphs.

A bar graph is a nice way to display categorical data.

For example, imagine a P.E. teacher has 4 soccer balls, 4 footballs, 7 tennis balls, and 8 volleyballs. We can display this data in a bar graph:

Notice how the height of the bar above "soccer" is 4 units to show that there are 4 soccer balls. And the bar above "tennis" is 7 units high to show that there are 7 tennis balls. The "football" and "volleyball" bars work in the same way.

Want to learn more about bar graphs? Check out this video.

Practice set 1: making bar graphs

Problem 1.A

Current

There are 4 purple, 5 yellow, 2 green, and 9 red lunch boxes.

Make a bar graph for this data.

Want to practice more problems like these? Check out this exercise.

Practice set 2: reading bar graph

Problem 2.A

Current

The music store sells trumpets, flutes, and drums.

This bar graph shows how many of each instrument are at the store.

How many more trumpets are there than flutes?

more trumpets

Want to practice more problems like these? Check out this exercise and this more advanced exercise.

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William Wise
Posted 7 years ago. Direct link to William Wise's post “What is a parallel modifi...”
What is a parallel modified boxplot?
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(16 votes)
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- Waseem Hussain
  Posted 6 years ago. Direct link to Waseem Hussain's post “Comparing several box plo...”
  Comparing several box plots on the same scale and then taking conclusions out of them.
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  (16 votes)
BrightGlossy Brightly
Posted 7 years ago. Direct link to BrightGlossy Brightly's post “How to create Parallel mo...”
How to create Parallel modified boxplot
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becca davis
Posted 4 years ago. Direct link to becca davis's post “Why wasn't there a practi...”
Why wasn't there a practice section for "Reading bar charts: Putting it together with central tendency?"
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adnanax
Posted 4 years ago. Direct link to adnanax's post “in an example where the c...”
in an example where the capacity of the car and number of seats given. shouldnt both be categorical instead of quantitative as there are fixed categories of cars based on number of seats either 2,4,5,6,7 and similarly the capacity is also categorized likewise.
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- Rohan Suri
  Posted 3 years ago. Direct link to Rohan Suri's post “No, they won't be called ...”
  No, they won't be called categorical because the difference between categorical and quantitave data boils to the simple rule whether we can perform valid arithmetic operations on it. For example the no of seats can be 2,4,5,6,7 (True) but you can perform arithmetic operations(addition on it) eg 2 seats + 2seats is 4 seats which makes perfect sense. So it is a quantitative variable in principle.
  However, suppose there is another variable called color of the car. Now color can be RED BLACK or Blue.
  In this case performing an arithmetic operation doesn't make sense :
  RED + BLACK doesn't make valid sense.
  So color of the car is a qualitative/categorical variable
  Button navigates to signup page
  (6 votes)
Collins, Jacob
Posted 5 years ago. Direct link to Collins, Jacob's post “does this txt thing work”
does this txt thing work
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(4 votes)
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Victor Gutierrez
Posted 4 years ago. Direct link to Victor Gutierrez's post “What has been called here...”
What has been called here categorical data, has been called quantitative data in the first video of this unit. Just saying..
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(0 votes)
Answer
- Saivishnu Tulugu
  Posted 4 years ago. Direct link to Saivishnu Tulugu's post “Nope, these are different...”
  Nope, these are different. Quantitative represents something whose numeric value matters such as age, height, growth, etc. Qualitative is describing the frequency of something with not mathematical values such as color or weather.
  Comment on Saivishnu Tulugu's post “Nope, these are different...”
  (5 votes)
Shane
Posted a year ago. Direct link to Shane's post “this is to easy”
this is to easy
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rava_ela
Posted 7 months ago. Direct link to rava_ela's post “if a mean test mark is 3 ...”
if a mean test mark is 3 , what would be the value
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monisivaneri.t
Posted a year ago. Direct link to monisivaneri.t's post “sir can you explain more ...”
sir can you explain more on pie chart
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- ruffenitaly
  Posted a year ago. Direct link to ruffenitaly's post “I think that the pie char...”
  I think that the pie chart is another way to represent data, to show numbers. Something I like about it is that it would be easy to see the highest amount of something when you are eyeballing it, although can't really say the same for the least amount of something sometimes.
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Pratik Salunke
Posted 2 years ago. Direct link to Pratik Salunke's post “why do we find median”
why do we find median
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Answer

Statistics and probability

Course: Statistics and probability > Unit 1

Bar graphs review

Practice set 1: making bar graphs

Practice set 2: reading bar graph

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