Graphical Displays
Shapes of Distributions
Measures of Center
Measures of Variation
Comparing
Distributions
Distributions
100
The following statistics for a data set:
Min, Q1, Med, Q3, Max
What is a five-number summary?
100
The shape of this distribution.
What is right skewed?
100
Some refer to this measure as the "middle number."
What is the median?
100
The difference Q3-Q1.
What is the interquartile range?
100
This distribution has the highest median value.
What is the distribution of heights for girls?
200
The average score on the last 6th grade math test.
What is an 85?
200
The correct description of this distribution.
What is normally distributed/roughly symmetric?
200
Also known as the average
What is the mean?
200
Max-Min
What is range?
200
The bookstore with the largest range in prices.
What is Bookstore A?
300
The smallest range of tip amounts Robin received.
What is 15-20 dollars?
300
The relationship between the mean and median in this distribution.
What is equal?
300
No statistic has more occurrences than this value.
What is the mode?
300
75% of data items are below this value.
What is a third quartile?
300
The distribution with the largest percentage of students 66 inches or shorter.
What is the distribution of heights for boys?
400
The number of students who did not eat breakfast.
What is 6 students?
400
The relationship between the mean and median in the distribution of household incomes.
What is mean > median?
400
An outlier can have a huge effect on this measure.
What is the mean?
400
The more accurate measure of spread for a roughly symmetric distribution.
What is the standard deviation?
400
On average, this genre of music has longer tracks.
What is Metal?
500
The statistics that are equal when a boxplot has no left whisker.
What are the minimum and Quartile 1?
500
The most accurate measures of center and spread to use when describing this distribution.
What are the median and IQR?
500
This number is the median of 10, 8, 6, 1, 3, and 2
What is 4.5?
500
The IQR for the distribution of park visitors.
What is 125 visitors?
500
On average, students in this class had a similar performance in the class.
What is Class 1?