Chapter 1 Test Probability and Statistics

The bar graph shows how many children played on sports teams.  Each child played on one sports team only.  How many more children played on a basketball team than on a volleyball team?

• 10
• 30
• 40
• 70

The bar graph shows how many fifth graders would like to visit certain states.  Each fifth grader chose exactly 1 state.  According to the bar graph, how many students were surveyed?

• 14 students
• 20 students
• 25 students
• 27 students

The graph shows quiz score for Ms. Bryant's classes.  Which observation about this data is true?

• The lowest score on the quiz was a 4.
• There were 8 students who scored an 11.
• There were 9 students who took the quiz.
• There were 18 students who scored a 7 or an 8.

The graph represent the closing price of a share of a certain stock for each day of a week.  Which day had the greatest increase in the value of this stock over that of the previous day?

• Tuesday
• Wednesday
• Thursday
• Friday

Chelsea records the number of seeds in each apple in a basket.  What could Chelsea most likely predict about the number of seeds in apples?

• Most apples have 10 seeds.
• Most apples have more than 10 seeds.
• Most apples have 9 to 11 seeds.
• Most apples have fewer than 10 seeds.

Ms. Ortega recorded the number of siblings each student in her class has.  Her data are shown on the line plot.  What is the total number of students in Ms. Ortega's class who have 2 or fewer siblings?

• 3
• 5
• 12
• 20

The stem-and-leaf plot shows the ages of people entering a hardware store.  How many people were over the age of 39?

• 7
• 8
• 9
• 12

A newspaper reporter surveyed 30 people after they cast their votes in a recent election.  He created the stem-and-leaf plot to display the ages of the voters surveyed.  Which of the following is closest to the percent of voters surveyed whose age was less than 41?

• 40%
• 47%
• 53%
• 60%

The Smithburg town library wanted to see what types of books were borrowed most often.  According to the circle graph shown-

• more children's books were borrowed than romance and science fiction combined.
• more than half of the books borrowed were children's mysteries, and art combined.
• more mysteries were borrowed than art and science fiction combined.
• more than half of the books borrowed were romance, mysteries, and science fiction combined.

The circle graph shows favorite flavors of jellybeans based on a random survey of 50 people.  How many more people chose grape than cherry as their favorite flavor?

• 11 people
• 22 people
• 23 people
• 46 people