Unit Review- Inferences

Identify the Population:
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

• 230 Teachers
• All Wicomico County Teachers
• Students
• Wicomico County Public Schools

At a middle school, the 7th graders will conduct a survey to decide where they want 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

Dylan wants to know how the students at his school rate the cafeteria.  He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

• Yes, because it is a convenience survey
• No, the basketball team has the smartest students
• Yes, because it's voluntary survey
• No, he should have asked the football team

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

The table shows the results of a survey of 200 people attending a hockey game.
The attendance for the hockey game is about 25,000 visitors each game.  Based on the table, how many people out of 25,000 could be expected to buy a pennant?

• 1,375
• 1,650
• 2,750
• 3,850

Tags

CCSS.6.RP.A.3B

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A computer manufacturer surveys its customers who purchased laptop computers to ask what software the company should include with its computer.  Identify the population.

• Customers who purchased laptop computers.
• Customers of the store.
• Customers who are interested in software.
• Computer manufacturers

Tags

CCSS.7.SP.A.1

Kim surveys 100 moviegoers that entered the movie theater in the first hour.  What type of sampling method is this?

• Random
• Convenience
• Biased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

This sample consists of units of the population that chose to respond.

• mandatory
• census
• volunteer
• unbiased

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Units of the population are ordered in some fashion.  Usually, every k-th unit is chosen.

• proportional
• probable
• stratified
• systematic

Tags

CCSS.HSS.IC.B.3

Identify the sampling design: School admin conducted a survey on post-graduation plans.  Students of senior class 2018 were listed in order by class rank.  The school selected a random number between 1 and 15, obtaining a number 11.  Then, they selected every 11th student for the survey.

• cluster
• volunteer
• systematic
• simple random

Tags

CCSS.HSS.IC.B.3