Unit 1 Topic 3 Test Review-Boxplots and Comparing Displays

The five-number summary for a data set is Minimum: 45 Lower Quartile: 65 Median: 68 Upper Quartile: 71 Maximum: 85 Which of the following is true for this data set?

• There are no outliers in the data set.

• This data set has at least one outlier on the high end and at least one outlier on the low end.

• This data set has at least one outlier on the high end and no outliers on the low end.

• This data set has no outliers on the high end and at least one outlier on the low end.

• It is not possible from the information provided to determine if the data set contains outliers.

Which of the following is an advantage of boxplots?

• Boxplots don’t show outliers.

• The process for creating a boxplot is not subjective.

• Boxplots must be created with technology.

• Boxplots can be used with very small data sets.

If the value of quiz scores has Q1 = 64, median of 75 and Q3 = 78 and a minimum of 40, which of the following must be true?

• The data cannot be skewed right.

• There are not any outliers.

• The data is symmetrical.

• The mean is more than the median.

• All are true.

Given these parallel boxplots, which of the following are true?

• I only

• II only

• I and II

• II and III

• I, II, and III

Which of the following is a correct box plot for these data? IQR=2 No outliers Skewed right 25% of the data is above 3

• A

• B

• C

• D

• E

Use Scenario A. Based on the boxplot, which of the following statements is true?

• The data is skewed left.

• The minimum pounds collected is below 50 pounds.

• The range of the middle half of the data is 12 pounds.

• The mean pounds collected could be 58 pounds.

• 25% of the hives collected are less than 63 pounds.

Use Scenario A. How many bee hives collected are less than 56 pounds?

• Can't determine

• 750

• 1000

• 500

• 250

Use Scenario A. How many bee hives collected are more than 63 pounds?

• 250

• Can't determine

• 500

• 750

• 1000

Use Scenario A. How many bee hives collected are more than 77 pounds?

• 250

• 500

• 0

• 750

• 1000

The top boxplot shows the test grades for Mrs. Pruitt’s Honors Pre-Cal test, while the bottom shows the grades for Mr. Pitts’ Honors Pre-Cal class. What can you conclude?

• A. Mr. Pitts’ class have a larger median.

• B. Mrs. Pruitt’s classes scores are much more consistent and would have a lower standard deviation.

• C. Both classes performed about the same.

• D. Both classes have grades that are approximately symmetrical.