
Data
Presentation
•
Mathematics
•
6th - 8th Grade
•
Easy
Ibu K
Used 1+ times
FREE Resource
15 Slides • 25 Questions
1
Categorical vs. Numerical Data
What is the difference?

2
What is DATA?
Information and facts that can be collected to help people solve problems, understand trends or to simply entertain! We will be reviewing two types of data: Categorical and Numerical.
3
This is data that has been collected and displayed. What types of graphs do you recognize? Why are graphs helpful?
4
What is categorical data?
A collection of data that can be put into categories or groups. Such as.......
5
Breeds of Dogs!
6
Genres of books!
7
What is numerical data
These data are expressed in number form, (NOT words or letters), such as......
8
Your height! (How tall you are.)
9
Time spent walking!
10
Multiple Choice
Which is an example of categorical data?
favorite team sports?
the number of red jellybeans in a box?
how much money in your piggy bank?
11
Multiple Choice
What is an example of numerical data?
most popular video game?
how much each dog weighs (how heavy)?
favorite day of the week
12
There are 2 types of QUANTITATIVE data
13
14
Multiple Choice
Gender
Categorical
Discrete
Continuous
15
Multiple Choice
Height
Categorical
Discrete
Continuous
16
DISPLAYING DATA: DOT PLOTS
To answer statistical questions we collect data. Numerical data can be summarized using dot plots.
17
18
Multiple Choice
What is the median of the data?
2
1
3
12
19
Multiple Choice
How many total students were surveyed about their number of brothers and sisters? (add up all of the dots)
15
10
6
20
Multiple Choice
How many students have a shoe size bigger than 8?
2
3
4
9
21
Multiple Choice
22
Multiple Choice
23
Bar Graphs
Show categorical data
Categories listed on horizontal axis
Frequency shown on vertical axis
24
Histograms
Show numerical data
Work best with large data sets
Shows data in ranges (also known as "bins")
"Bins" are shown along horizontal axis
Frequency shown on vertical axis
25
Multiple Choice
Suppose the class was polled about their favorite kind of flower.
Which type of graph would you use to show this data?
Dot Plot
Bar Graph
Histogram
26
Multiple Choice
If our class were to take a poll on how far (in miles) their house is from the school, which type of graph would you use to show that data?
Dot Plots
Bar Graphs
Histograms
27
Multiple Choice
How many people in the survey were 40 years old or older?
23
18
52
60
28
Multiple Choice
29
Multiple Choice
30
Multiple Choice
A survey asked 2,450 students which types of activities they are likely to participate in. The results of the survey are shown. How many students are likely to participate in computer programming or video games?
12
88
294
2156
31
Multiple Choice
Based on the graph, how many more students are in the science club than the book club?
20
16
46
18
32
Multiple Choice
The graph shows how employees at Disney World travel to work. How many employees ride bikes, ride the bus, or walk to work?
300
450
325
375
33
Multiple Choice
What is the difference in the number of people who owned a Wii and the number who owned a Gameboy?
4
7
3
2
34
Multiple Choice
Which month had the greatest number of books read?
November
December
January
February
35
Multiple Choice
Which month had the fewest books read?
January
February
March
April
36
Multiple Choice
37
Multiple Choice
38
Multiple Choice
39
Multiple Choice
40
Multiple Choice
Categorical vs. Numerical Data
What is the difference?

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