Unit 1 ABCDE

Which of the following questions would require the collection of data to create a boxplot?

• What is the capital of Virginia?

• How many hours do students in grade 8 spend on homework each week?

• What is the most popular color among grade 8 students?

• How many students are in grade 8?

You want to determine the average height of students in grade 8. Which method would be most appropriate to collect this data?

• Conducting a survey asking students their favorite sport

• Measuring the height of each student in grade 8

• Observing students during lunch

• Asking students how tall they think they are

How might statistical bias affect the data collected from a sample of students who volunteer to participate in a study about study habits?

• The sample will be representative of the entire student population

• The sample may over-represent students who are more studious

• The sample will include all students equally

• The sample will be unbiased

Given the data set: 5, 7, 8, 12, 15, 18, 22, 25, 30, 35, organize it into a boxplot. What is the median of this data set?

• 12

• 15

• 18

• 22

Identify the lower quartile of the following data set represented by a boxplot: 3, 5, 7, 9, 11, 13, 15, 17, 19, 21.

• 5

• 7

• 9

• 11

Which of the following questions would require data collection to create a boxplot?

• What is the average temperature in Virginia during winter?

• How many students prefer online classes over in-person classes?

• How many hours do students sleep on average per night?

• What is the most common pet among students?

To determine the favorite school subject among grade 8 students, which data collection method would be most appropriate?

• Conducting a survey asking students their favorite subject

• Measuring the time spent on each subject

• Observing students during recess

• Asking teachers about their students' preferences

How might statistical bias affect the data collected from a sample of students who are only from the honors class?

• The sample will be representative of the entire student population

• The sample may over-represent students with higher academic performance

• The sample will include all students equally

• The sample will be unbiased

Given the data set: 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, organize it into a boxplot. What is the range of this data set?

• 16

• 18

• 20

• 22

Identify the interquartile range of the following data set represented by a boxplot: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.

• 4

• 6

• 8

• 10