Comparing Data Sets and Distributions

What information can be obtained from a stemplot?

• The information that can be obtained from a stemplot includes the standard deviation and variance of the data.

• The information that can be obtained from a stemplot includes the individual data values, the frequency or count of each value, and the overall distribution of the data.

• The information that can be obtained from a stemplot includes the mean, median, and mode of the data.

• The information that can be obtained from a stemplot includes the correlation coefficient between two variables.

What is the shape of the distribution?

• The distribution is approximately symmetrical.

• The distribution is skewed to the right.

• The distribution is skewed to the left.

• The distribution is approximately uniform.

What shape is the distribution?

• The distribution is approximately symmetrical.

• The distribution is skewed to the left.

• The distribution is skewed to the right.

• The distribution is bimodal.

Which dot plot has the greatest variability?

• A

• B

• C

• D

Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34

• 7

• 23

• 31

• 34

If there is an even number of data in the data set how do you find the median?

• order the data and find the middle value

• order the data, add the 2 middle values and divide by 2

• they are both the median

• add the 2 numbers in the middle together

What is the shape of the distribution?

• Skewed Left

• Skewed Right

• Symmetric

• Bimodal

Which word best describes the distribution?

• Bimodal

• Multimodal

• Right Skewed

• Unimodal

What is a dotplot?

• A dotplot is a statistical measure of central tendency.

• A dotplot is a graphical representation of data using dots.

• A dotplot is a type of scatter plot.

• A dotplot is a graphical representation of data using lines.

What are the advantages of using a dotplot?

• Dotplots are difficult to create and interpret

• Dotplots are not suitable for large datasets

• Advantages of using a dotplot include easy identification of outliers, clusters, and gaps in the data, clear representation of data spread, and the ability to compare multiple groups or categories.

• Dotplots cannot be used to compare different variables