2019 Semester 2 Review A

The manager of a computer store analyzed software sales by category for the past month. The results are shown below. If the manager plans to order 400 software packages for the upcoming month, how many of them should be home productivity?

• 16
• 100
• 325
• 75

Out of 255 cat owners, predict how many owners trained their cat not to climb on furniture.

• about 43 people

• about 29 people

• about 110 people

• about 92 people

Out of 316 cat owners, predict how many owners trained their cat not to claw on furniture.

• about 43 people

• about 29 people

• about 110 people

• about 92 people

The school librarian recorded the types of books students checked out on a typical day. Suppose there are 605 students enrolled at the school. Predict the number of students that prefer humor books.

• about 138 students

• about 143 students

• about 99 students

• about 88 students

The school librarian recorded the types of books students checked out on a typical day. Suppose there are 605 students enrolled at the school. Predict the number of students that prefer nonfiction books.

• about 138 students

• about 143 students

• about 99 students

• about 88 students

Mr. Nash, the school principal is gathering data about students and homework completion.  To get valid results, which survey method should he use?

• Post a link to his survey questions on the school website.
• Survey the first 40 students who walk into the cafeteria on Tuesday.
• Ask each homeroom teacher to select 4 students to answer his survey
• Have the computer randomly generate a list of students to answer his survey

Suppose 10 out of 15 students surveyed said that they were going to attend the football game.  How many of the 3500 students in the school would you expect to attend the football game?

• 17500
• 5250
• 2333
• 1050

Katie and Danielle recorded their resting heart rates each morning for ten days. The double dot plot shows their heart rates in beats per minute. Which of the following statements is NOT true?

• Danielle's heart rate is more consistent.
• Katie's heart rate is more consistent.
• Katie's heart rate ranged from 57 to 75.
• Danielle's heart rate has a smaller range.

Julia’s grades on her first five science quizzes are 80, 96, 81, 98, and 88.  What grade on the sixth quiz will give her average of exactly 90?

• 90
• 89
• 95
• 97

Use the box and whiskers plot to determine which statement is not true.

• The median of the men’s ages is greater than the median of the women’s ages.
• The interquartile range of the men’s ages is greater than the interquartile range of the women’s ages.
• The youngest member of the club is a woman
• The range of the men’s ages is greater than the range of the women’s ages