Comparing Data Variability

Which company would you prefer to use based on the data?

• Dannette's Auto Repair

• Alphonso's Auto Repair

Which highway has the higher median wait time?

• I-80

• I-5

• Cannot Be Determined

Q2. What is the distribution of the data?

• A) Skewed Left

• B) Skewed Right

• C) Uniform

• D) Symmetric

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193

• 127

• 60

• 66

Which city, Nashville or Dallas, has the lowest Q1?

• Nashville

• Dallas

What is the interquartile range (IQR) of the data set?

• 20

• 25

• 5

• 10

If we use the mean to measure the typical value or center of the data, we would use the _________ to measure the variability.

• IQR

• Median

• Mean

• Standard Deviation

Corinne is planning a beach vacation in July and is analyzing the daily high temperatures for her potential destination. She would like to choose a destination with a high median temperature and a small interquartile range. She constructed box plots shown in the diagram above. Which destination has a median temperature above 80 degrees and the smallest interquartile range?

• Ocean Beach

• Whispering Palms

• Serene Shores

• Pelican Beach

• a

• b

• c

• d

When comparing data sets, a higher Standard Deviation indicates...

• More consistency and less variability

• Less consistency and less variability

• More consistency and more variability

• Less consistency and more variability