Interpreting Two-Way Frequency Tables

2-Way Frequency Tables

Create & Complete 2-Way Tables

VOCABULARY

• FREQUENCY: the number of times an event occurs

• 2-WAY TABLE: a chart with two variables (or categories) and how frequently they both happen. The table also includes totals for each response and the number of people surveyed.

READING & INTERPRETING

• FIRST ROW (HIKING)

• TOTAL: 165 want to go hiking

• 135 also want to camp (do both)

• 30 don't want to camp (hike only)

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READING & INTERPRETING

• FIRST COLUMN (CAMPING)

• TOTAL: 180 want to go camping

• 135 also want to hike (do both)

• 45 don't want to hike (camp only)

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Multiple Choice

QUESTION 4

WHICH ACTIVITY DO MOST VISITORS PREFER?

• More visitors chose CAMPING.

• More visitors chose HIKING.

Multiple Choice

QUESTION 4

WHICH ACTIVITY DO MOST VISITORS PREFER?

• More visitors chose CAMPING.

• More visitors chose HIKING.

Multiple Choice

QUESTION 5

WHICH COMBINATION OF ACTIVITIES WAS THE MOST PREFERRED CHOICE?

• Most preferred to:

  CAMP ONLY

• Most preferred to:

  HIKE ONLY

• Most preferred to:

  DO BOTH

• Most preferred to:

  DO NEITHER

Multiple Choice

QUESTION 6

WHICH COMBINATION OF ACTIVITIES WAS THE LEAST PREFERRED CHOICE?

• The least preferred choice was to:

  CAMP ONLY

• The least preferred choice was to:

  HIKE ONLY

• The least preferred choice was to:

  DO BOTH

• The least preferred choice was to:

  DO NEITHER

FINDING THE TOTAL

(outside boxes)

ADD THE TWO INSIDE BOXES

to get the total at the end of a row or column

Multiple Choice

QUESTION 7

IF YOU KNOW TWO NUMBERS IN A ROW OR COLUMN, HOW DO YOU FIND THE TOTAL FOR THAT CATEGORY?

• multiply the two numbers

• divide the two numbers

• add the two numbers

• subtract the two numbers

• ask Siri

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FINDING A FREQUENCY

(inside boxes)

SUBTRACT FROM THE TOTAL

to see how often someone chose the OTHER OPTION in a row/column.

Multiple Choice

QUESTION 10

In a survey, 205 out of 300 people admitted to getting a speeding ticket.

HOW MANY PEOPLE DIDN'T GET A SPEEDING TICKET?

• 300 people

  did not get a ticket

• 95 people

  did not get a ticket

• 505 people

  did not get a ticket

• It's impossible to tell.

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BOTTOM RIGHT CORNER

(inside boxes)

SUBTRACT FROM THE TOTAL

to see how often someone chose the OTHER OPTION in a row/column.

TOTAL SURVEYED?

THE BOTTOM-RIGHT CORNER IS ALWAYS THE GRAND TOTAL FOR HOW MANY PEOPL WERE SURVEYED.

The Last Row: (68 + 42 = 110) should add up to this amount.

The Last Column: (65 + 45 = 110) should also add up to this amount.

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Multiple Choice

How many total people were surveyed about what ice cream flavor they would pick?

• 107

• 92

• 70

• 269

Multiple Choice

What percent of people who bought no food purchased water?

• 14.3%

• 33.3%

• 5%

• 41.1%

Multiple Choice

How many sophomores like burritos and pizza?

• 6

• 5

• 11

• 50

Multiple Choice

What percentage of SUV's are driven by women?

• 56.25%

• 75%

• 83.25%

• 86.5%

Multiple Choice

What is the percentage of students that are between the ages 10 - 13 and eat breakfast?

• About 33%

• About 50%

• About 40%

• About 44%