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Samples and Populations Statistics
Authored by Anthony Clark
Mathematics
7th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As part of a 7th grade statistics project, the teacher brings a candy jar full of gumballs (red & green). The assignment is to estimate the proportion of red gumballs in the jar. Suppose one of the students draws 25 gumballs from the jar: 8 are red, 17 are green. What is the SAMPLE?
25 gumballs drawn
all gumballs in the jar
the students
the 17 green gumballs
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
_______ is the entire group of objects or individuals considered for a survey.
Sample
Quartile
Random Sample
Population
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
_______ is a part of a group being surveyed.
Sample
Population
Quartile
Random Sample
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False: all samples lead to a good prediction about an entire population.
True
False
5.
DROPDOWN QUESTION
1 min • 4 pts
What is the difference between a sample and a population?
A (a) is a set of all items or events which are of interest for some question or experiment.
It is generally the group you are trying to make predictions or learn something about.
For most studies, it is either impossible or impractical to obtain data on an entire population.
This is why you need to use a smaller selection of items.
A (b) is a selection of observations from a population.
We measure data in a known sample to make a prediction, or inference, about the population.
population
correlation
sample
causation
ideation
application
understudy
sample survey
experiment
observational study
6.
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
7.
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.
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