Dot Plot/MMMR/Box Plot Review

Mrs. Cotton's class took a poll of the the class' sibling count- the dot plot shows the outcome. What is the MODE of the dot plot graph?

• 4

• 3

• 1

• 2

From this graph, could you get a data set? Could you find the median?

• No, we cannot get a data set or a median because they did not give us the numbers, just the graph.

• Yes, we can get the data set from the graph because it tells us how many of each number there is. But there will be no median.

• No, the graph is not complete enough to get a data set.

• Yes, we can get the data set from the graph because it tells us how many of each number there is, you can also find the median by crossing off high and low numbers until you reach the middle.

What is the data set of this dot plot graph?

• 0,0,1,1,1,1,1,2,2,2,2,2,3,3,4

• 4,4,3,3,3,2,2,2,2,2,1,1,1,0,0

• 0,0,1,1,1,2,2,2,2,2,3,3,3,4,4

• 0,1,2,3,4

Can you find the Median of the Dot Plot?

• 0

• 1

• 2

• 3

Describe the process of getting IQR from this graph- then tell us what it is!

• Write the data set from the graph, find the median by looking at the most middle number there- then you found your IQR- the IQR is 2!

• Write the data set from least to greatest. Cross of high and low numbers until you reach the middle, Find the upper and lower quartiles and their medians, Subtract (Q3-Q1) - that gives you your IQR- the IQR will be 2!

• Find the smallest number and the largest number! then subtract! The IQR is 4!

• Find the average of all the numbers! That will give you the IQR- the IQR is 1.8!

What part of the Box Plot is circled? Can you name it?

• Median

• Maximum - Upper Extreme

• Q3 - Upper Quartile Median

• Minimum - Lower Extreme

What part of the Box Plot is circled- can you name it?

• Minimum- Lower Extreme

• Maximum- Upper Extreme

• Q1- Lower Quartile Median

• Median

Elliot's hen laid a number eggs and she want to track them using a box plot- look at the graph - what would be the median number of eggs the hen laid?

• 10

• 8

• 6

• 3

From the graph what would the Interquartile Range(IQR) for the box plot provided?

• 2

• 8

• 5

• 7

Between what numbers are, 50% of the data, on the box plot?

• 2 and 10

• 2 and 8

• 2 and 6

• 2 and 3