Data Sets

Which of the numbers below is NOT part of a 5 number summary used to create a boxplot?

• minimum

• first quartile

• mean

• third quartile

• maximum

• A

• B

• C

• D

• E

Answer explanation

The histogram below shows the heights of 300 randomly selected high school students. Which of the following is the best description of the shape of the distribution of heights?

• Roughly symmetric and unimodal

• Roughly symmetric and bimodal

• Roughly symmetric and multimodal

• Skewed to the left

Write down the percentage of people in Australia who were aged 0 – 14 years in 2010. Provide an integer to the nearest percentage.

(a)  

If there is an Outlier in the set which measure of CENTER would you use?

• Mean

• Median

• IQR

• Range

Which value(s) are outlier(s) for the age of male Oscar winners?

• 80

• 76

• 60

• 29

Does there appear to be an association between gender and favorite sport?

• Yes, the segments all look about the same for the groups.

• No, the segments all look about the same for the groups.

• Yes, there appears to be a higher percentage of females who prefer baseball and a higher percentage of males prefer football.

• Yes, there appears to be about the same percentage of both males and females who prefer basketball.

Answer the question pictured.

• I and II only

• I, II, and IV only

• II and III only.

• I, II, and III only.

The data below shows the scores of two groups of ten students on a math quiz and a science quiz. Math: 72, 92, 88, 67, 54, 58, 64, 76, 65, 72 Science: 84, 78, 56, 89, 54, 68, 75, 78, 84, 60 Based on the data, which statements are true?

• The median score was greater for math, but the variability was greater for science.

• The median score was greater for science, but the variability was greater for math.

• Both the median score and variability for the math scores are less than that of the science scores.

• Both the median score and variability of the math scores are greater than that of the science scores.

• The range for science is less than the range for math.

The box and whisker plots below, illustrate the scores earned by 2 biology classes on a recent test. Select all statements that are supported by the plots above.

• The range of the 3^rd period scores is less than the range of the 5^th period scores.

• The median of the 5^th period scores is greater than the median of the 3^rd period scores.

• The number of students who took the test is larger in the 5^th period class than in the 3^rd period class.

• The interquartile range is the same for both classes.

• The 3^rd period class has a higher median but has a lower range than the 5^th period class.