Statistics Center and Variability

A five number summary includes the minimum, maximum, median, ________ and ___________

• Pizza

• seltzer water

• quarter 1 or Q1

• quarter 3 or Q3

Pick the definition of an outlier.

• A value that lies outside of most other values in a data set.

• A value that is the largest.

• A value that is the smallest.

• A value that occurs the most.

In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?

• 0.53

• 0.41

• 0.35

• 0.22

Which club has the smaller spread, less variation?

• Cruisers

• Car Hops

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

• 20

• 25

• 5

• 10

True or False: the mean and median values of shoe sizes shown in the dot plot for Group B are almost the same.

• True

• False

On a recent test, a statistics professor finds that the mean and median scores are nearly equal. Which of the following could be the distribution of test scores?

• 
• 
• 
• None of these is correct

Which restaurant has a greater IQR?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

• Skewed Left
• Skewed Right
• Uniform
• Symmetric

Find the median of these numbers:
4, 2, 7, 4, 3

• 2

• 5

• 7

• 4