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Descriptive Statistics Flashcards | StudBud
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Descriptive Statistics
Descriptive Statistics
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#Math
Flashcards
13 cards
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Questions
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Answers
1
What kind of variable is a drug in an experiment about how a drug affects recovery time?
Confounding Variable
Dependent Variable
Random Variable
Independent Variable
2
What kind of statistics makes inferences and predictions about populations based on samples?
Inferential Statistics
Probability Theory
Descriptive Statistics
Observational Studies
3
What does Q
3
-Q
1
equal to?
Interquartile Range(IQR)
Range
Outlier
Midrange
4
15 students are grouped into 6 majors. 2 majors are randomly selected. What kind of sampling method is this?
Cluster Sampling
Stratified Sampling
Systematic Sampling
Convenience Sampling
5
What kind of graph is this?
Scatter Plot
Histogram
Box plot
Bar Graph
6
Consider the two fish of lengths 15 cm and 30 cm. What level of measurement is the length?
Ratio
Ordinal
Nominal/Categorical
Interval
7
What level of measurement is a ZIP code?
Ordinal
Nominal/Categorical
Interval
Ratio
8
Where are mode, median, and mean in this left skewed distribution?
a. mode b. median c. mean
a. median b. mean c. mode
a. mode b. mean c. median
a. mean b. median c. mode
9
A class is split by year in school and a random sample of each year is taken. What kind of sampling method is this?
Cluster Sampling
Systematic Sampling
Convenience Sampling
Stratified Sampling
10
What kind of variable is gender in an experiment about how drug affects recovery time?
Confounding Variable
Independent Variable
Random Variable
Dependent Variable
11
Today's temperature is 87
o
F. What level of measurement is the temperature?
Nominal/Categorical
Ratio
Ordinal
Interval
12
Every 3rd Person in line at Starbucks is asked a survey. What kind of sampling method is this?
Simple Random Sampling
Systematic Sampling
Stratified Sampling
Cluster Sampling
13
What about SSN?
Interval
Nominal/Categorical
Ordinal
Ratio
