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