Topic #7: Two Way Relative Frequency Tables

Which relative frequency table is most appropriate for the given two-way frequency table?

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What percent of students skip breakfast?

• 48%

• 16%

• 32%

• cannot be determined.

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

What percent of students eat breakfast?

• 40%

• 30%

• 70%

• 30%

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.5

What percent of students age 14 - 17 skip breakfast?

• 6%

• 60%

• 24%

• 30%

How many students ages 10 - 13 eat breakfast?

• 40

• 30

• 70

• cannot be determined

Two different types of engineers were surveyed to determine whether they prefer math or science more in high school.

What percent of people preferred math and are mechanical engineers?

• 25%

• 17%

• 53%

• 47%

Two different types of engineers were surveyed to determine whether they prefer math or science more in high school.

If 300 people were surveyed, how many are electrical engineers?

What is Relative Frequency?

• The ratio of the number of times a category is represented to the total number of pieces of data
• A bar graph that represents the relative frequency in a table
• Data that can be divided into categories based on the attributes of the data
• The distribution of data

Tags

CCSS.HSS.ID.B.5

According to the two-way table, a person who plays an instrument is most likely to:

• Not play an instrument
• Not play a team sport
• Play a team sport
• All of the above

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.5

There are 3 more students age 14 - 17 who eat breakfast than students age 14 - 17 that skip breakfast.

Use the information above, along with the relative frequency table, to determine how many people were surveyed.

• 50

• 80

• 90

• cannot be determined