Population vs. Sample
A restaurant chain wanted to find out how the customer experience was in a store. Which choice best represents a sample?
1 out of every 35 customers
A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a sample?
242 voters.
You want to know the favorite types of music of students in your homeroom.
Population
A musician wanted to see what people who bought his last album thought about the songs. Which choice best represents a sample? .
A selection of 3,294 people who bought the album.
Before a nation-wide election, a polling place was trying to see who would win. Which choice best represents a sample?
A selection of voters of different ages
A toy store owner tracking how much kids spend each month on toys. Which choice best represents a population?
All of the kids who buy toys
A gaming website wanted to find out which console its visitors owned. Which choice best represents a population?
All of the website visitors
A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?
Every person in the United States.
How many days are in December?
Non-statistical
What is your favorite color?
Non-statistical
How many books are in every cupboard of your house?
Statistical
How many cars were sold each month this year?
Statistical
How many students could cover a distance of 5 meter?
Statistical
Determine whether you would survey the population or a sample: You want to know the average height of seventh-graders in Tallahassee.
Survey a sample
Determine whether you would survey the population or a sample: You want to know the number of students in Florida who have summer jobs.
Survey a sample
Data
The factual information collected from a survey or other source
A group of librarians are interested in the numbers of books and other media that patrons check out from their library. They examine the checkout records of 150 randomly selected adult patrons.
The population is all adult patrons of the library; the sample is the 150 patrons selected.
Lucio wants to know whether the food he serves in his restaurant are within a safe range of temperatures. He randomly selects 70 entrees and measures their temperatures just before he serves them to his customers.
The population is all of the entrees Lucio serves; the sample is the 70 selected entrees.
Administrators at Riverview High School surveyed a random sample of 100 of their seniors to see how seniors at the school felt about the lunch offering at the school's cafeteria.
The population is all seniors at Riverview High; the sample is the 100 seniors surveyed.
A pediatrician randomly selected 10 parents of his patients. Then he surveyed the parents about their opinions of different kinds of diapers.
The population is the parents of the pediatrician's patients; the sample is the 10 parents of patients selected
Sample
a subset/PART of the population
Population
the collection of ALL outcome, responses, measurements, or counts that are of interest
Statistics
the science of collecting, organizing, analyzing, and interpreting data in order to make decisions
