A histogram has the tallest bar at 80–89. What does that mean?
There are no values in that range
80–89 is the lowest range
Every value is exactly 80
Most data values are in the 80–89 range
Why is a dot plot helpful?
It is only used for words
It shows exact data values
It only shows percentages
It hides the data
To show how many students scored in each test score range: 60–69, 70–79, 80–89, 90–100, which graph should they use?
Pie graph
Histogram
Dot plot
Picture only
Why do histogram bars touch?
Because the bars are decoration
Because it is a dot plot
Because the data is grouped into number ranges
Because the graph is broken
If you want to know how many students scored 70 or higher, what should you do?
Add the bars for 70 and above
Only look at the first bar
Count the title
Divide by 2
If most dots are close together, the data is probably…
A pie graph
Impossible
Missing
Clustered
What does a pie graph show?
Parts of a whole
Bars that touch
Dots on a number line
A list of numbers only
A class wants to show how students voted: pizza, tacos, burgers, or salad. Which graph would make sense?
Histogram
Dot plot
Box plot
Pie graph
What is one thing a histogram does NOT show clearly?
Groups of data
The shape of the data
Which bin has the most
Exact individual values
What does a histogram show?
Individual dots
Data in groups or intervals
Names of people
Parts of a whole
Which graph is best if you want to see exact scores?
Pie graph
Histogram
Map
Dot plot
Which graph is best if you want to see data grouped into ranges?
Histogram
Clock
Pie graph
Dot plot
If a slice of a pie graph is the biggest, what does that mean?
It represents zero
It is always 50%
It represents the largest part
It is the least important
If 50% of a pie graph is shaded, that means…
All of the data
One tiny part
None of the data
Half of the data
Which graph would be best to show favorite school lunch choices as parts of the whole class?
Pie graph
Dot plot
Number line
Coordinate plane
A dot plot has dots at 2, 3, 3, 4, 9. What do you notice?
9 may be an outlier
2 is the largest number
The data has no numbers
All numbers are the same
What does each dot usually represent on a dot plot?
One bar
One percent
One data point
One question
If one number has the tallest stack of dots, what does that usually show?
The title
The median
The range
The mode
Which graph is best if you want to compare parts of one whole?
Pie graph
Histogram
Dot plot
Line plot only