Populations & Samples 3/24

Populations & Samples 3/25

Open Ended

What conclusion can you draw from the lunch data?

Open Ended

How are surveys conducted so that data can be collected about a particular topic (for example if someone wanted to know the favorite social media app of teens, how could that info be collected?)

Population

​**The whole (entire) group being studied/surveyed

Some text here about the topic of discussion

Sample

​**The part of the population being studied

Some text here about the topic of discussion

Multiple Choice

A scientist studies lions on a wildlife preserve to learn about the parenting habits of lions. The population is represented by .....

• the lions on the preserve

• all lions

• the scientist

• the parenting habits

Multiple Choice

A scientist studies lions on a wildlife preserve to learn about the parenting habits of lions. The sample is represented by....

• the lions on the preserve

• all lions

• the scientist

• all parenting habits

Multiple Choice

Miguel thinks the science teachers in the school give more homework than the math teachers. He is researching the number of hours middle school students in his school spend doing math and science homework. The ___________ includes all of the students in Miguel's middle school.

• population

• sample

Multiple Choice

Miguel thinks the science teachers in the school give more homework than the math teachers. He is researching the number of hours middle school students in his school spend doing math and science homework. A possible ___________ is some of the students from each grade in the school.

• population

• sample

Multiple Choice

The coach asks the starting five players which uniform the basketball team wants to wear. The population is.

• The coach

• The starting 5

• All the students in the school

• The players on the basketball team

Multiple Choice

The coach asks the starting five players which uniform the basketball team wants to wear. The sample is...

• the coach

• the starting 5 players

• all the students in the school

• all the students on the basketball team

Types of Samples

​Random Sample

A sample in which everyone in the population has an equal chance of being chosen.

​

Ex. putting all students' names in a bag and then drawing a name​

Some text here about the topic of discussion

Types of Samples...

Biased Sample

A sample that is not a good representation of the population (does everyone have an equal chance of participating ~ is it fair?) Favors a group of people

​

​ Ex. surveying only the boys or only 6th grade about the type of activities we should have for PBIS​

Some text here about the topic of discussion

Types of Samples

​Systematic Sample

Participants are chosen based on a rule or formula

​

Ex. every 10th person, 15th person etc​

Some text here about the topic of discussion

Types of Samples

​Stratified Sample

Participants are chosen at random but from chosen subgroups in the population...part random/part biased

​

Ex. Students chosen randomly from 6th, 7th, or 8th grade

​

​

Some text here about the topic of discussion

Multiple Choice

Dr. Evans picks a name out of a hat from the entire 7th grade.

• Random Sample

• Biased Sample

• Systematic Sample

• Stratified Sample

Multiple Choice

A radio company surveys every 9th caller.

• Random Sample

• Biased Sample

• Systematic Sample

• Stratified Sample

Multiple Choice

Mrs. Rawls randomly draws a students' name.

• Random Sample

• Biased Sample

• Systematic Sample

• Stratified Sample

Multiple Choice

A survey to see what sports should be played in schools and only surveying basketball players?

• Random Sample

• Biased Sample

• Systematic Sample

• Stratified SAmple

Poll

How are you feeling about Populations & Samples?

• I got this.

• I need a little more practice.

• I have no clue!