Histograms
This is the name for the vertical bars in a histogram.
What are bins?
The middle line in a box plot represents this statistic.
What is the median?
The Z-score measures this in statistics.
What is the number of standard deviations away from the mean?
A correlation of +1 means the two variables have this type of relationship.
What is a perfect positive correlation?
Where was the Declaration of Independence signed?
Philadelphia
In a histogram, the height of each bar represents this.
What is frequency?
The length of the box in a box plot shows this measure of spread.
What is the interquartile range (IQR)?
A Z-score of 0 means this about the data point.
What is it is equal to the mean?
A correlation of 0 means this about the relationship between two variables.
What is no correlation?
Who was the 40th president?
Ronald Reagan
This type of histogram has a tail that extends to the right.
What is right-skewed (positively skewed)?
These points outside the whiskers of a box plot indicate unusual values.
What are outliers?
A Z-score of -2 indicates the data point is this far below the mean.
What is two standard deviations below the mean?
This statistical measure quantifies the strength and direction of a linear relationship.
What is the correlation coefficient (r)?
What is the tallest mountain on Earth?
Mount Everest
If a histogram has two peaks, it is called this.
What is bimodal?
The upper whisker of a box plot extends to the maximum value unless one of these is present.
What is an outlier?
If a Z-score is above 3 or below -3, the data point is considered this.
What is an extreme outlier?
A strong negative correlation means as one variable increases, the other does this.
What is decreases?
What is the capital of Florida?
Tallahassee
A histogram differs from a bar graph because it represents this type of data.
What is quantitative data?
This rule determines whether a data point is an outlier using 1.5 times the IQR.
What is the 1.5IQR rule?
The formula for calculating a Z-score is this.
What is (X - μ) / σ?
Correlation does not imply this.
What is causation?
What is the largest planet in the solar system?
Jupiter