Two-Variable Statistics Vocabulary A1H

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

• The sample didn't include students.
• The sample is too small.
• The sample can only be accurate if each teacher is included in the sample

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

Which scenario would produce the least biased results?

• asking athletes at a gym what their favorite television show is
• asking shoppers at a store where their favorite place to shop is
• asking fans at a baseball game who their favorite baseball team is
• asking students in a college library what their favorite college sports team is

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

How many sophomores like burritos and pizza?

• 6
• 5
• 11
• 50

How many total people were surveyed about what ice cream flavor they would pick?

• 107
• 92
• 70
• 269

Which age group liked Action movies the least?

• 18-25
• 25-49
• 50+
• 238

The leaf is 5 mm wide.

• qualitative

• quantitative

Dolphin colors range from gray to white.

• qualitative
• quantitative 

Tell whether the data are categorical or numerical, and univariate or bivariate.

the color of socks

• Categorical

  Bivariate

• Categorical

  Univariate

• Numerical

  Univariate

• Numerical

  Bivariate