Topic #5 Dot Plots & Histograms

Find the mean of the data in version A. Round to the tenth.

Which measure of central tendency best represents the data

• Mean because there is no outlier

• Median because there is an outlier

• Mode because data is categorical.

• Neither mean, median, or mode best represent the data.

Describe the shape of the frequency distribution.

• Symmetric

• Uniform

• Bimodal

• Left Skew

• Right Skew

Describe the shape of the frequency distribution.

• Symmetric

• Uniform

• Bimodal

• Left Skewed

• Right Skewed

Estimate the mean of the histogram.

The dot plot and histogram represent the exact same data.

Find the mode. Which type of display was used?

• 27; dot plot

• 23, 24, 25, 26; histogram

• 25; dot plot

• 25; histogram

Find the difference between the medians of version A and B.

If you wanted to determine the top 25% of a data set, which type of display would be most efficient?

• dot plot

• bar graph

• histogram

• box plot

Find the range of the data. Which display did you use?

• 7; box plot

• 10; histogram

• 2; box plot

• 7; histogram

The dot plot and histogram represent the same data. If the mean of the histogram is 24.25, how is it different than the mean of the dot plot?

• The mean of the histogram is .17 higher than the mean of the dot plot.

• The mean of the histogram is .17 lower than the mean of the dot plot

• The mean of the histogram and dot plot are the same

• You cannot find mean of the dot plot.