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Statistics Review
Statistics Review
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Flashcards
18 cards
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Questions
18
Answers
1
True or false: A histogram shows frequency distribution.
False
True
2
What does variance measure?
Data range
Data spread
Data average
Data count
3
True or false: Correlation implies causation.
False
True
4
What is a sample?
Whole population
Subset of population
Data collection method
Random guess
5
What is the range of 5, 10, 15?
15
5
10
20
6
What is the mean of 2, 4, 6?
8
6
2
4
7
What does a scatter plot show?
Data distribution
Data average
Single data point
Relationship between variables
8
Which graph shows a normal distribution?
Bell curve
Bar graph
Line graph
Pie chart
9
Which is a type of probability?
Data set
Statistical test
Random variable
Conditional probability
10
What is a confidence interval?
Single value
Data point
Range of values
Sample size
11
What is a null hypothesis?
Data collection method
Effect assumption
Sample size
No effect assumption
12
Which is a measure of central tendency?
Variance
Range
Standard deviation
Median
13
What is the purpose of a survey?
Analyze data
Store data
Present data
Collect data
14
What does a p-value indicate?
Statistical significance
Data collection
Sample size
Population mean
15
What does a box plot show?
Data distribution
Data average
Data correlation
Data sample
16
What is the mode of 1, 2, 2, 3?
3
1
2
4
17
True or false: A higher standard deviation means more spread out data.
True
False
18
What is a probability distribution?
Data average
Sample size
Probability of outcomes
Data range
