Reading Histograms
Vocab
Reading Other Graphs
100
How many lottery winners were between 50-59 years old?
8
100
The numbers on the bottom of a histogram that represent groups of data are called what?
Intervals
100
How many people got between an 80-119?
12
200
How many lottery winners were at least 60 years old?
9
200
What is the difference between bar graphs and histograms?
Histograms represent groups of data while bar graphs represents individual data points. Also the bars on a histogram touch while bar graph bars do not.
200
How many people take a car to school?
16 people
300
The histogram below represents peoples test scores. How many people took the test?
18
300
A _________ is an entire group of people that are surveyed.
Population
300
How many students scored between 70-79?
3
400
How many lottery winners were 39 years old or younger?
7
400
A _______ is a small group of people that are surveyed. This small group is a part of a larger population.
Sample
400
How many students scored an 80 or higher?
13 students
500
What is the most common age group?
16-20
500
A _______ sample is one in which each member of the population has an equal chance of being selected. This helps avoid bias.
Random
500
If 100 people were surveyed, how many chose action?
25 people