# 2115 Univariate Data - Stem & Leaf Plots

8 Questions | Total Attempts: 601  Settings  Stem & Leaf, Split Stem & Leaf Plots and Back-to-Back Stem & Leaf plots

• 1.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 2.
Back-to-back stem & leaf plots allow you to :
• A.

Map your data on the left, and sort it on the right

• B.

See how skewed your data set is

• C.

Compare the distribution of two data sets

• D.

Split your data set into two similar sizes

• E.

Compare the upper values with the lower values

• F.

I don't know

• 3.
Back-to-back stem & leaf plots have :
• A.

Larger values

• B.

A common stem

• C.

Smaller values

• D.

A normal distribution

• E.

A neutral distribution

• F.

I don't know

• 4.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 5.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 6.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 7.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 8.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 9.
The image above is :
• A.

A stem & leaf plot

• B.

A split stem & leaf plot

• C.

A back-to-back stem & leaf plot

• D.

A back-to-back split stem & leaf plot

• E.

I don't know

• 10.
The image above is stem and leaf plot. How many 'splits' does it have?
• A.

None, its just an ordinary stem and leaf plot

• B.

Two splits

• C.

Three splits

• D.

Five splits

• E.

I don't know

• 11.
When do we split a stem & leaf plot?
• A.

When there are too many leaves to see a shape

• B.

When the shape is negatively skewed

• C.

When we suspect there are outliers

• D.

When the shape is positively skewed

• E.

When here are too few numbers on a branch

• F.

I don't know

• 12.
How many values do you need in a data set for a stem and leaf plot to be useful?
• A.

Less than 12

• B.

More than 80

• C.

More than 200

• D.

Between 10 & 15

• E.

More than 5 but less than 50

• F.

I don't know

• 13.
Back-to-back stem & leaf plots allow you to :
• A.

Map your data on the left, and sort it on the right

• B.

See how skewed your data set is

• C.

Compare two data sets

• D.

Split your data set into two similar sizes

• E.

Compare the upper values with the lower values

• F.

I don't know

• 14.
Using a split stem & leaf plot can help :
• A.

Compress the data

• B.

Simplify the data

• C.

Reveal features that were not easily detected

• D.

Hide features that are easily detected

• E.

Reduce the number of errors

• F.

I don't know

• 15.
In a stem & leaf plot, outliers can be hidden if :
• A.

There are too many intervals in a stem

• B.

We multiply the interquartile range by 1.5

• C.

They are left out of the range

• D.

There are too few intervals on the stem

• E.

The interquartile range is large

• F.

I don't know

• 16.
In a stem & leaf plot, we can detect the general shape of the distribution by :
• A.

Counting the total number of leaves and dividing by the stem

• B.

Counting the number of stems and dividing the leaves

• C.

Turning the stem counter-clockwise so it is horizontal

• D.

Mirroring the stem in a clockwise direction

• E.

Finding the range and the IQR

• 17.
I collect data for 40 adults relating to the number of hours they watch television per week. I create a stem & leaf plot and the data which ends up with three intervals on the stem.What should I do?
• A.

• B.

• C.

Split the stem into intervals of two

• D.

Split the stem into intervals of 10

• E.

Create a back-to-back stem & leaf plot

• F.

Three intervals is enough for 40 pieces of data, leave it how it is.

• 18.
A stem & leaf plot is ideal for :
• A.

Ordering data

• B.

Finding the median

• C.

Finding the modal class

• D.

Finding the max & min

• E.

Finding the mean

• F.

Finding the standard deviation

• G.

Counting z-scores

• 19.
A stem & leaf plot is ideal for :
• A.

Ordering data

• B.

Separating categorical data

• C.

Finding the mean

• D.

Finding the standard deviation

• E.

Counting z-scores

• 20.
I have collected the scores for the latest Geography test, and created the stem & leaf plot above.If the value '0' is an outlier, and I'm not saying if it is or it isn't, what is my range?
• 21.
I collected the results for the latest Geography test and sorted them into the stem & leaf plot above.Is the minimum value an outlier?
• A.

Zero is never considered an outlier

• B.

No, there must be two gaps to make it an outlier.

• C.

Probably, but I'd need to check

• D.

Yes, because zero is always considered to be an outlier

• E.

No because outliers are always on a positive skew Back to top