Statistics Quiz

In the data set below, what are the minimum, lower quartile, the median, upper quartile, and the maximum?

• Minimum: 21, Lower Quartile (Q1): 31, Median: 32, Upper Quartile (Q3): 36, Maximum: 59

• Minimum: 21, Lower Quartile (Q1): 24, Median: 32, Upper Quartile (Q3): 47, Maximum: 59

• Minimum: 21, Lower Quartile (Q1): 24, Median: 31, Upper Quartile (Q3): 36, Maximum: 47

• Minimum: 21, Lower Quartile (Q1): 24, Median: 32, Upper Quartile (Q3): 36, Maximum: 59

Use the data from problem #1 to create a boxplot. How would you describe the shape of this distribution?

• Symmetrical

• Skewed to the right

• Skewed to the left

• None

What is the Interquartile Range of the distribution from problem #1?

• 23

• 15

• 10

• 20

What percent of time did the gift shop have sales of $325 or less?

• 25%

• 50%

• 75%

• 100%

What percent of the days saw sales between $275 and $350?

• 25%

• 50%

• 75%

• 100%

Use the data in the table to complete the histogram below. How many students scored between 60-79?

What percentage of the plants given brand A fertilizer have heights less than or equal to the Q3 height of plants given brand B fertilizer?

• 25%

• 50%

• 75%

• 100%

The middle 50% of plants given Brand A have heights between what two numbers?

• 4 and 8 inches

• 8 and 16 inches

• 12 and 16 inches

• 16 and 24 inches

Which brand of fertilizer should not Maya recommend to her friends?

• Brand A

• Brand B

• Both

• None

The shape of the distribution of Running Crew is:

• Skewed Left

• Symmetric

• Skewed Right