Random Limited Biased
Quiz
•
Mathematics
•
7th Grade
•
Medium
Anthony Clark
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17 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When you can not (or do not want) to count/survey everyone/thing in the population you use a SAMPLE.
Which best describes a sample?
A sample is a complete count of every individual in the population.
A sample is a subset of individuals chosen from a larger set.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the population is ALL 7th Graders Then you want to take a sample from ALL 7th graders. A sample is part of the population but not all of it. Select the one below that is true
A sample is a smaller group selected from the population
A sample is the entire population
A sample is a larger group than the population
A representative sample is not related to the population
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
BEWARE: Your sample does not allow for someone in China to be represented.
If you survey students in your town then your population is limited to students in your town.
What makes a sample representative?
The sample is representative if it includes people from all over the world
The sample is representative if it includes people from the same town
The sample is representative if it includes people from the same country
The sample is representative if it accurately reflects the group it is supposed to represent
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When taking a sample You want to choose individuals/objects FROM THE POPULATION Anyone in the population could potentially be part of the sample is ideal. Which below is the best way to take a sample?
Only select individuals who are easily accessible
Select individuals based on personal bias
Select individuals randomly from the entire population
Only select individuals who respond to a public survey
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tanya wants to know the percent of people likely to attend the upcoming musical at school. She asks each person in the musical how many people they know who are coming to make a prediction. Why is this sample biased?
Drama students are more likely to lie.
Musicals are better attended than plays.
The drama teacher was not asked.
The sample is not random and not representative of the entire school population.
Answer explanation
The sample is not random and not representative of the entire school population, as it only includes people involved in the musical, leading to bias.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For a survey, a company manager assigned a number to each of the company's 500 employees, and put the numbers in a bag. The manager chose 20 numbers and surveyed the employees with those numbers.
biased
random
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ms. Madson wants to know how many students will attend the next 7th grade after school dance. She places all the 7th grade students’ names in a jar and selects 50. Is this random or biased sampling?
Random
Biased
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