
Sampling and Statistics Quiz
Authored by Suraj Singh
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Professional Development
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the primary purpose of sampling in statistics?
To survey the entire population
To assume an underlying probability on the population
To infer the underlying population distribution from sample data
To assume the sample data are dependent
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The sample mean:
Is a fixed value
Varies with each sample
Has the same mean as the population
Both B and C
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The Central Limit Theorem states that for large sample sizes, the distribution of the sample sum will be:
Uniform
Skewed
Normally distributed
Exponentially distributed
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In proportionate sampling, what does the variable represent?
The total population size
The number of subsets in the population
The proportion of the population with a specific characteristic
The size of each subset
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does sample variance measure in a dataset?
The average of the data points
The spread of the data points around the mean
The sum of the data points
The product of the data points
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What statistical measure decreases with an increase in sample size?
Mean
Median
Mode
Standard deviation of the sample mean
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which theorem provides the basis for making inferences about population means using the sample mean?
Bayes' Theorem
Pythagorean Theorem
Central Limit Theorem
Theorem of Total Probability
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