Unit 9 lesson 12 great review on graphs!

Bar graph• Compares data that is countable

Double bar graph

• Compares two sets of data in one graph

Frequency tableKeeps track of how many times things occur… used to

create other graphs (histogram)

People in your Household

Tally Frequency

0-2 03-5 IIII IIII IIII IIII IIII 256-8 IIII I 69-11 II 2

Histogram

• Compares the frequency of the data• Bars touch

Line plot• Shows how data groups together at certain

points

Mon. Tues. Wed. Thurs. Fri Sat Sun

= 2 people

Favorite Day of the Week

Line graph

• Shows change over time – prices, temperature

• Used when investigating trends

Venn Diagram• Shows data sorted into categories, and shows

if they overlap or fit into more than one category

Boy Students Girl StudentsStudentsAge 12

Circle graph

• Compares to the WHOLE!• Percentages out of 100%• To find how many surveyed add up the

numbers!

Quick Check: Match Up!

10

Compares data that is countable

Keeps track of how many times things occur… used to create

other graphs (histogram)

Compares the frequency of the dataBars touch

Shows change over time – prices, temperatureUsed when investigating trends

Quick Check: Match Up!

11

Compares two sets of data in one graph

Shows how data groups together at certain points

Shows data sorted into categories, and shows if they overlap or fit into more than one category

Compares to the WHOLE!

Which graph BEST represents the data?

12

The data isn't showing change over time so line graph wouldn’t work

Which graph BEST represents the data?

13

A sports magazine survey 40 readers to see how many hours of exercise they get each day. They survey found that the group of readers gets between 1 and 7 hours of exercise a day.

Looking at frequency, not comparing to the whole

Which graph BEST represents the data?

14

Range of data on the chart… not categories!

Which graph BEST represents the data?

15

A weatherman records temperature every hour over the course of a day.

Change over time!!!

Which graph BEST represents the data?

16

A doctor wants to know the percentage of her patients that have blue eyes, brown eyes, or hazel eyes.

Comparing to ALL patients!

Which graph BEST represents the data?

17

Ms. Fletcher wants to know how many campers at the horse farm like to ride English, Western or both.

Wants to see the overlap!

Which graph BEST represents the data?

18

Agora teachers want to know how much time their student spend studying each week. They give the students a survey and find that most students spend 3-5 hours studying.

Wants the frequency and has ranges!

Which graph BEST represents the data?

19

A camp wanted to figure out what the best activities were to offer to boys and girls. They gave a survey on 5 different activities and recorded how many boys and girls voted for each activity.

Comparing boys and girls, two sets of data!!!