7th Grade Targets G, H, I Practice

A random sample of 60 students from a high school with 900 students is surveyed. Each student is asked what math class he or she is taking and all students at the school take math.

The table shows the responses.

Based on the survey results, which statement about all of the students at the high school is most appropriate to make?

• Twice as many students at the

  high school are taking

  Pre-Calculus than are taking

  Algebra.

• About 10% of students at the

  high school are taking

  Statistics.

• In a group of 100 students, it

  is expected that 30 of the

  students are taking Geometry.

• It is estimated that about 150

  of the students at the high

  school are taking Algebra.

Levi wants to estimate the number of students from his seventh grade class whose favorite subject is science. He plans to ask 30 students and wants the sample to be representative of his seventh grade class. From which of the following populations should he randomly select his sample?

• Students in a science class.

• Students on a school bus.

• Students in seventh grade.

• Students in the cafeteria.

Delaney asked 25 students about their favorite flavor of ice cream. Twelve responded that their favorite flavor was chocolate. If there are 275 students at her school, how many would you predict would choose chocolate as their favorite flavor based on this survey?

A bakery manager wants to estimate how many of each type of dessert will be purchased in a month. The manager keeps track of the orders for one week. The table shows the results.

Based on the data, which estimate could represent the number of times each type of dessert will be ordered for the rest of the month? (Hint: 3 more weeks)

• 246 cake, 420 pie, 436 cookie

• 369 cake, 315 pie, 654 cookie

• 500 cake, 475 pie, 625 cookie

• 420 cake, 872 pie, 492 cookie

A professional basketball player practiced shooting free throws before a game. He made 12 of

15 shots. Predict how many free throws he will make in the game if he has 5 opportunities.

The histogram below shows the number of visitors in each age range that visited Children’s

Museum during a time period of one hour.

Find the probability that the next person to visit Children’s Museum is between 0 and 10 years old.

Enter your answer as a percent- do not put the % sign.

The box plot shows a summary of test scores for Period 3 and Period 6 on the same exam. Both classes have the same number of students. Determine whether the statement is true based on these box plots.

In each class, 25% of students scored below 65 on the test.

• True
• False

The box plot shows a summary of test scores for Period 3 and Period 6 on the same exam. Both classes have the same number of students. Determine whether the statement is true based on these box plots.

The median test score of Period 6 is 5 points less than the median test score of Period 3.

• True
• False

The box plot shows a summary of test scores for Period 3 and Period 6 on the same exam. Both classes have the same number of students. Determine whether the statement is true based on these box plots.

In each class, more than 25% of students have test scores greater than 90.

• True
• False

These dot plots show the number of daily text messages sent by two different groups of students.

How much greater is the median number of text messages sent by Group B than the median number of text messages sent by Group A?