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8.22.3-Refine Ideas about Random Sampling
Presentation
•
Mathematics
•
8th Grade
•
Easy
+1
Standards-aligned
Jessica Freeman
Used 1+ times
FREE Resource
8 Slides • 13 Questions
1
2
3
4
Multiple Choice
A ______ is the entire set of objects from which data might be collected
sample
population
sample statistic
population characteristic
5
Multiple Choice
A _______ is a subset or part of the population that you can collect data from.
sample
population
sample statistic
population characteristic
6
Multiple Choice
True or False:
All samples lead to a good prediction about the entire population.
True
False
7
Multiple Choice
A student wants to know which type of of pizza middle school students prefer. Which of the following options is a good, representative sample of the population?
Asking all of the 5th graders
Asking 20 students from each grade level in the middle school
Asking all of the teachers
Asking the students who walk to school each day
8
Multiple Choice
A beverage company wants to see if people in the United States like their new logo. Which of the following represents the population?
2,000 middle school students
A selection of logo designers
A selection of shoppers from different states
All of the people in the United States
9
Multiple Choice
A beverage company wants to see if people in the United States like their new logo. Which of the following would be the best selection for a sample.
2,000 middle school students
A selection of logo designers
A selection of shoppers from different states
All of the people in the United States
10
11
12
13
14
15
Multiple Choice
You want to study a random sample of 4 out of 26 students in your class. Describe a process you could use to create a random sample with 4 subjects.
Assign each student a number in alphabetical order, then select 4 random numbers.
Select 4 students who sit close to you.
Select the 4 students whose names come first alphabetically.
Assign each student a number, then select students 1 through 4.
16
Multiple Choice
To learn about teenagers' opinions of different social media platforms, a survey was given to students of one high school. This sample is...
representative
biased
random
17
Multiple Choice
An employer wants to know how their 500 employees like working for them. Which is the most representative sample?
Ask the first 75 people to show up for work
Randomly select the names of 10 employees
Poll the Employees of the Month for the past year
Randomly select the names of 75 employees
18
Multiple Choice
Which is an example of a random sample?
Polling the first 10 people who enter a room
Asking a survey question to people who call in
Drawing 10 names from a hat
19
Multiple Choice
Why should samples be randomly selected?
for control
to reduce bias
so we don't get the same answers from everyone
20
Multiple Choice
A _______ is a part of a the group we are interested in gathering data on that is being surveyed.
Representative
Population
Sample
21
Multiple Choice
A _________ is a sample in which each individual or object in the entire population has an equal chance of being selected.
Sample
Population
Random Sample
Bias
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