IQR and Box Plots

Front

True or False
The interquartile range is the difference between the upper quartile (Q3) and the lower quartile (Q1).

Back

True

Front

Find the interquartile range using the following.
Minimum:  1
Q1:  3
Median:  5
Q3:  7
Maximum:  9

Back

4

Front

What data value is the upper quartile (Q3)?

Back

64

Front

What is the median?

Back

62

Front

What value is the lower quartile (Q1)?

Back

60

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is a measure of statistical dispersion, or spread, that is calculated as the difference between the 75th percentile (Q3) and the 25th percentile (Q1) of a dataset.

Front

Which restaurant has a higher median wait time? Options: Lucy's Steakhouse, Gary's Grill, They are the same

Back

Lucy's Steakhouse

Front

Use the box plot to answer the question.

Back

15

Front

What is the lower quartile (Q1) of the data set?

Back

30

Front

Use the box plot to answer the question.

Back

75%