CHAPTER 11 REVIEW (Sections 1 and 2)

What is a requirement of a statistical question?

• one set answer

• a variety of answers

Choose the statistical question:

• What is the favorite pet of 11th graders at MHS?

• How many 11th graders own a dog?

Zoie completes a report by asking 70 students across campus. She found that 48% of MHS students do not wash their hands after using the bathroom. What is the population of her survey?

• the bathroom

• MHS students

• 48% of students

• 70 students

Zoie completes a report by asking 70 students across campus. She found that 48% of MHS students do not wash their hands after using the bathroom. What is the sample ?

• 48%

• the bathroom

• 70 students

• MHS students

Is this a statistical question?

"What is the tallest building in Chicago, IL?"

• YES

• NO

Is this a statistical question?

"What is the most popular store among teenagers in Maplewood Mall?"

• YES

• NO

Is this a parameter or statistic?

"The average length of all trout in a river is 60 cm."

• Parameter

• Statistic

For the survey question below, is the variable quantitative or categorical?

"What is your eye color?"

• Quantitative

• Categorical

Which of the following represent categorical variables? SELECT ALL THAT APPLY.

• Number of hours you play sports per week

• Type of job you have

• Sport you play

• Amount of money you make working a job each week

2. When a sample does not accurately represent the population being studied it is a(n):

• A. Unbiased sample
• B. Biased sample