Box Plots
Dot Plots/Histograms
Variability
Shape of Data
Mean vs. Median
100

These 2 values are what create the edges of the "Box".

First Quartile (Q1) and Third Quartile (Q3)

100

True or False: Unless you have a gap in your data, the bars in your histogram should touch each other.

True

100

Variability is the math term for how ________ your data is.

 spread out

100

What shape is your data when both sides of the data look/are spaced the same way?

Symmetric

100

The name of the number that is the middle of the data set.

The median.

200
Where is the median in a box plot?

The middle line.

200

Which data display requires you to separate your data into intervals?

A) Dot plots

B) Histograms

C) Box Plots

B) Histograms

200

Which is NOT a measure of variability?

A) Median

B) IQR

C) Standard Deviation

D) MAD

A) Median

200

When your data is symmetric, where are both the mean and the median located?

In the middle!
200

The mathematical term for "Average."

The mean.
300

What is the formula for interquartile range (IQR)?

IQR=Q3-Q1

or

IQR=Right side of box - left side of box

300

Which data display is the only one that shows each individual data point?

A) Dot plots

B) Histograms

C) Box Plots

A) Dot Plots

300

When looking at the variability between two data sets, which would have more consistency?

A) MAD of 10

B) MAD of 3

C) MAD of 3.5

D) MAD of 1.4

D) MAD of 1.4

300

Which shape of data is the only one that cannot also be symmetric?

A) Uniform

B) Bimodal

C) Bell-Shaped

D) Skewed

D) Skewed

300

Find the median of this data set:

1,2,2,3,4,4,4,5,5

4

400

Where do you find the "typical value" on a box plot?

The median (middle line).

400

True or False: You can find the exact mean/median from a dot plot.

True

400

Using the 5-number summary, calculate the range and the interquartile range:

Min: 1, Q1: 6, Median: 11, Q3: 16, Max: 20

Range: 20-1=19

IQR: 16-6=10

400

When your data is symmetric, which statement is true?

A) mean = median

B) mean>median

C) mean<median

A) mean = median

400

Find the mean of this data set (round to 1 decimal place):

1,2,2,3,4,4,4,5,5

3.3

500

How do you calculate variability in a box plot?

Find the IQR (size of the box)

500

Which of these can you calculate a precise value for, when given a histogram?

A) Mean

B) Median

C) Range

D) None of the above

D) None of the above

500

Which dot plot would have a higher MAD?

A) One where all of the data is clustered around 1 number.

B) One where the majority of the data is happening on the edges of the numberline.

B) One where the majority of the data is happening on the edge of the numberline.

500

When your data is right skewed, which statement is true?

A) mean = median

B) mean>median

C) mean<median

B) mean>median

500

Are the mean and median of this data set equal?

1,1,1,3,4,5,5,5,6,7,9,9,9

Yes

600

What percent of apple types cost less than $3?

25%

600

Which group of teens had more consistency in studying?

13 - 15 year olds

600

Which dot plot is more variable (less consistency), A or C?

C

600

Which of the following is a left skew?

C

600

A. What happens to the mean when a low outlier is deleted?

B. What happens to the median when a low outlier is deleted?

A. The mean decreases

B. It doesn't really change

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