On a school survey, age, gender, height, GPA, and highest level of education are recorded. The number and type of variables recorded is:

Which of the following variables are discrete?

I.    Number of students entering a race

II.   100-meter dash times in a race

III.  Height of competitors in a race

IV.  Age of competitors in a race

The boxplot shows the data gathered based on 100 purchases at a craft vendor’s table. Based on the results, half of all purchases fall between which two price points?

The histogram below shows the age of 30 employees of a company.  Which of the following statements is correct?

The histogram below shows the age of 30 employees of a company.  Determine the median age range.

At a burger stand, 250 people were surveyed on whether they preferred eating their burgers with cheese or no cheese. Of the 250 people surveyed, 100 were adults and 150 were children. Of the responses, 160 people said they prefer cheese and 100 of those were children.

Which of the following tables shows the distribution of responses?

Consider the dot plot below.

What is the 5 number summary of the distribution above?

The results of a classroom set of test scores is below. Which option displays the correct box plot for the data?

60, 62, 64, 64, 72, 75, 78, 80, 80, 81, 81, 82, 85, 89, 92, 94, 97

The height of a selected sample of boys in the United States is normally distributed with a mean of 64 inches and a standard deviation of 0.5 inches. The height of a selected sample of girls is normally distributed with a mean of 62 inches and a standard deviation of 0.4 inches.

Approximately what is the height of a boy with the same z-score as a girl with a height of 63 inches?

Which of the following are true about bar graphs?

I.    They summarize quantitative data

II.   They summarize categorical data

III.  The order of the categories is important

IV.  They can display frequencies or relative frequencies