SLIDE 1
How many people responded to the survey? 1. How many males - - PowerPoint PPT Presentation
How many people responded to the survey? 1. How many males - - PowerPoint PPT Presentation
D AY 58 D ATA T ABLES V OCABULARY Two-way Frequency Tables are a visual representation of the possible relationships between two sets of categorical data. Two-way Relative Frequency Tables displays percentage or ratios instead of just
SLIDE 2
SLIDE 3
PROBLEM
Survey asked students, “What food would you prefer when having your recess?” Two-Way Frequency Table
Cakes Fruits Candies Totals Male 10 8 6 Female 12 5 9 Totals
SLIDE 4
1.
How many people responded to the survey?
2.
How many males responded to the survey?
3.
How many people chose FRUITS?
4.
How many females chose CANDIES?
5.
How many males chose CAKES?
SLIDE 5
PROBLEM
Survey asked students, “What food would you prefer when having your recess?” Two-Way Relative Frequency Table
Cakes Fruits Candies Totals Male 10 8 6 Female 12 5 9 Totals
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PROBLEM
1.
What percentage of the survey takers was female?
2.
What is the relative frequency of males choosing a CANDIES?
3.
Was there a higher percentage of males or females choosing CAKES ?
SLIDE 7
ANSWER KEY
Two-Way Frequency Table
Cakes Fruits Candies Totals Male 10 8 6 24 Female 12 5 9 26 Totals 22 13 15 50
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ANSWER KEY
Two-Way Relative Frequency Table
Cakes Fruits Candies Totals Male
10 = 0.2
50 8 = 0.16 50 6 = 0.12 50 24 = 0.48 50
Female
12 = 0.24 50 5 = 0.1 50 9 = 0.18 50 26 = 0.52 50
Totals
22 = 0.44 50 13 = 0.26 50 15 = 0.3 50 50 = 1 50
SLIDE 9
1.
How many people responded to the survey? 50
2.
How many males responded to the survey? 24
3.
How many people chose FRUITS? 13
4.
How many females chose CANDIES? 5
5.
How many males chose CAKES? 10
SLIDE 10
1.
What percentage of the survey takers was female? 50%
2.
What is the relative frequency of males choosing a CANDIES? 12%
3.
Was there a higher percentage of males or females choosing CAKES ? Higher percentage
- f females