Unit 1 Review - Sampling and Experimentation

Blood type

• Ordinal

• Nominal

Waiting time in a waiting room

• Categorical

• Quantitative

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

CCSS.6.SP.A.1

CCSS.6.SP.A.2

Calories in ice cream

• Categorical

• Quantitative

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Categorical or Quantitative?
Years of schooling completed

• Categorical
• Quantitative

Which of the following is an example continuous?

• How many students are in the different PE classes

• The number of desks in classes

• A person's Zip Code

• A Person's Height

Which of the following is an example of a categorical, ordinal variable?

• Class Rank (Freshman, Sophomore, etc...)

• Eye color

• Years of Schooling Completed

• Number of students in math classes

Scopes of Ice Cream

• Discrete

• Continuous

Classes in a student schedule

• Ordinal

• Nominal

A program exists to encourage more middle school students to major in math and science when they go to college. The organizers of the program want to estimate the proportion of students who, after completing the program, go on to major in math or science in college. The organizers will select a sample of students from a list of all students who completed the program. Which of the following sampling methods describes a stratified random sample?

• Select all female students on the list.

• Randomly select 50 students on the list.

• Randomize the names on the list and then select every tenth student on the randomized list.

• Randomly select 25 names from the female students on the list and randomly select 25 names from the male students on the list.

• Randomly select 50 students on the list who are attending college.

The transportation department of a large city wants to estimate the proportion of residents who would use a system of aerial gondolas to commute to work. The gondolas would be part of the city’s effort to relieve traffic congestion. The department asked a random sample of residents whether they would use the gondolas. The residents could respond with yes, no, or maybe. Which of the following is the best description of the method for data collection used by the department?

• A census

• A sample survey

• An experiment

• A simulation

Tags

CCSS.HSS.IC.B.3