ACC Statistics Test Practice Questions

How many siblings do you have?

• Statistical

• Non-statistical

Answer explanation

The correct answer is Non-statistical because the number of siblings is a personal, non-statistical fact about the individual.

What is your favorite color?

• Statistical

• Non-statistical

Answer explanation

The correct answer is 'Non-statistical' because it is a personal preference and not based on statistical data.

Choose the statistical question:

• What time did you wake up this morning?

• What time do sixth graders wake up each morning during the school week?

Answer explanation

The correct statistical question is 'What time do sixth graders wake up each morning during the school week?' as it focuses on a specific group and time period for data collection.

Choose the statistical question:

• How many sixth graders ate breakfast on Monday?

• How many sixth graders eat breakfast each school day?

Answer explanation

The correct statistical question is 'How many sixth graders eat breakfast each school day?' as it focuses on a general trend rather than a specific instance on Monday.

Statistical questions should ALWAYS...

• provide helpful information for someone (be relevant)

• be meant for kids to answer

• be asked of adults, not kids

• have one right answer

Answer explanation

Statistical questions should ALWAYS provide helpful information for someone (be relevant), making this the correct choice.

Statistical questions have _____ possible answers.

• zero

• one

• only two

• two or more

Answer explanation

Statistical questions can have multiple possible answers, not limited to just one or two, making 'two or more' the correct choice.

What is the main purpose for asking statistical questions?

• Surveying people is fun.

• We can create charts with statistics.

• Statistical questions help us gather data about a topic.

Answer explanation

Statistical questions help us gather data about a topic, enabling us to analyze and draw conclusions based on the collected information.

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• thirty students who are often tardy

• thirty students who are rarely tardy

• thirty of her friends

• thirty randomly selected students from her school

Answer explanation

Choose randomly selected students to get unbiased opinions

At an assembly 7 out of 10 students who entered the gym were carrying a backpack. Based on this information, if 700 students were at the assembly, how many students could be expected to be carrying a backpack?

• 49

• 490

• 210

• 421

Answer explanation

Since 7 out of 10 students had a backpack, the expected number of students with a backpack out of 700 is (7/10) * 700 = 490. Therefore, 490 students could be expected to be carrying a backpack.

The Student Council asked every tenth student in the lunch line how they preferred to be contacted with school news. The results are shown in the table. Suppose there are 684 students at the school. How many can be expected to prefer E-mail? (just type in the number)