Sampling & Experiments Unit Exam

Which of the following surveying methods divides individuals by a shared attribute, then randomly surveys members within each attribute-group?

• Simple random

• Stratified random

• Cluster random

• Strategic Random

Tags

CCSS.HSS.IC.B.3

Which of the following surveying methods involves randomly selecting groups of individuals, then surveys all individuals in the group?

• Stratified Random

• Cluster Random

• Simple Random

• Systematic

Tags

CCSS.HSS.IC.B.3

You are surveying members of a grocery store about their food preferences. You decide that you will survey every 4th person entering the store. What type of a survey is this?

• Convenience

• Systematic

• Snowball

• Judgement

Tags

CCSS.HSS.IC.B.3

You are surveying from a group of 35 people using a simple random sample. You assign each member of the group a number from 01 to 35, then select 3 of them using the random digits: 61424 20419 86546 00517.

Which number is selected second?

• 42

• 04

• 20

• 19

A sportswriter wants to know how strongly Lafayette residents support the local minor league

baseball team, the Lafayette Leopards. She stands outside the stadium before a game and interviews the first

20 people who enter the stadium. The intended population for this survey is:

• all residents of Lafayette.

• all Leopard fans.

• all people attending the game the day the survey was conducted.

• the 20 people who gave the sportswriter their opinion.

• all American adults.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Identify the sampling method:

Based on 12,500 responses from 42,000 surveys sent to its alumni, a major university estimated that the annual salary of its alumni was 92,500.

• SRS

• Cluster

• Stratified

• Convenience

• Voluntary Response

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Identify the sampling method:

A community college student interviews the first 100 students to enter the building to determine the percentage of students that own a car.

• SRS

• Stratified

• Cluster

• Convenience

• Voluntary Response

Tags

CCSS.HSS.IC.B.3

Identify the sampling method:

The names of 70 contestants are written on 70 cards, The cards are placed in a bag, and three names are picked from the bag.

• SRS

• Systematic

• Stratified

• Cluster

• Convenience

Tags

CCSS.HSS.IC.B.3

To randomly select 25 basketball players from the 300 players in the NBA, I would:

• Number the players from 01-25, read 3 digits at a time from a random table, discarding repeats and numbers over 25, and then stop when I reach 25.

• Number the players from 0-299, read 2 digits at a time from a random table, discarding repeats and numbers over 299, and stop when I reach 25.

• Number the players from 01-299, read 2 digits at a time from a random table, discarding repeats and numbers over 300, and stop when I reach 25.

• Number the players from 001-300, read 3 digits at a time from a random table, discarding repeats, 000 and numbers over 300, and stop when I reach 25.

Tags

CCSS.7.SP.A.2

Identify the Population:

Gwinnett County Public Schools randomly selected 230 teachers to find out which technology resource is the most effective. 30 teachers chose Safari Montage, 45 selected Learn Zillion, 100 chose Ed Puzzle, and 55 chose Kahoot. GCPS concluded that all teachers prefer Ed Puzzle.

• 230 Teachers

• 100 Teachers

• 55 Teachers

• All Teachers

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1