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