Review Authentic Quiz 2

Which type of graph can be used for quantitative data?

• Histogram

• Bar graph

• Pie Chart

What's your favorite subject in school?

• Categorical
• Quantitative

Number of Passengers

• Categorical

• Quantitative

Find the median of this data set:

4, 2, 7, 4, 3

• 2

• 5

• 7

• 4

A data set can have more than one mode

• True
• False

Which of the following is a measure of spread, or variability?

(select all that apply)

• Interquartile Range

• Standard Deviation

• Mean

• Median

What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range, but with a bunch of other stuff going on.

The distribution of z-scores will always have a standard deviation of 1

• True

• False

According to the empirical rule, what percentage of data falls within 1 standard deviation? 

• 25%
• 68%
• 95%
• 99.7%

Which descriptive measure is more resistant to the effect of outliers?

• Mean

• Median