12-7 ALG

​Definition:

Frequency Table: A Frequency Table is a statistical table that shows you how often something occurs in a sample.

Subject | Subject

Some text here about the topic of discussion

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

• Pg 311, #3 "Reason"

• FIRST ROW (HIKING)

• TOTAL: 165 want to go hiking

• 135 also want to camp (do both)

• 30 don't want to camp (hike only)

Fill in the Blanks

QUESTION 1

Pg 311, #3 "Reason"

2ND ROW

HOW MANY VISITORS DON'T WANT TO HIKE AT ALL?

Fill in the Blanks

QUESTION 2

Pg 311, #3 "Reason"

2ND ROW

HOW MANY VISITORS DON'T WANT TO DO EITHER ACTIVITY?

READING & INTERPRETING

• Pg 311, #3 "Reason"

• FIRST COLUMN (CAMPING)

• TOTAL: 180 want to go camping

• 135 also want to hike (do both)

• 45 don't want to hike (camp only)

Fill in the Blanks

QUESTION 3

Pg 311, #3 "Reason"

2ND COLUMN

HOW MANY VISITORS DON'T WANT TO GO CAMPING AT ALL?

Multiple Choice

QUESTION 4

Pg 311, #3 "Reason"

WHICH ACTIVITY DO MOST VISITORS PREFER?

• More visitors chose CAMPING.

• More visitors chose HIKING.

Multiple Choice

QUESTION 5

Pg 311, #3 "Reason"

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

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

Fill in the Blanks

QUESTION 8

Pg 310, Check Understanding

HOW MANY PEOPLE SURVEYED DON'T PLAY SOCCER?

FINDING A FREQUENCY

(inside boxes)

SUBTRACT FROM THE TOTAL

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

Fill in the Blanks

QUESTION 9

In a survey, a total of 96 people were asked if they had kids and 24 people said "YES."

HOW MANY PEOPLE SAID "NO" ?

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.

Fill in the Blanks

QUESTION 11

Pg 310, Check Understanding

HOW MANY PEOPLE PLAY SOCCER, BUT DON'T WATCH IT?

Fill in the Blanks

QUESTION 12

Pg 314, #4

HOW MANY PLANTS WERE SPRAYED, AND DIDN'T HAVE APHIDS?

Fill in the Blanks

QUESTION 13

Pg 314, #4

HOW MANY PLANTS WERE HAD APHIDS, BUT DIDN'T GET SPRAYED?

Fill in the Blanks

QUESTION 14

Pg 314, #4

IF 41 PLANTS WERE PART OF THE EXPERIMENT, AND 13 HAD APHIDS

HOW MANY PLANTS DIDN'T HAVE APHIDS?

BOTTOM RIGHT CORNER

(inside boxes)

SUBTRACT FROM THE TOTAL

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

TOTAL SURVEYED?

Pg 314, #3

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.

Fill in the Blanks

QUESTION 15

Pg 314, #5

HOW MANY TOTAL PEOPLE WERE SURVEYED ABOUT THEIR ELECTIVE CLASSES?

Multiple Choice

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

• 107

• 92

• 70

• 269

Multiple Choice

How many sophomores like burritos and pizza?

• 6

• 5

• 11

• 50