Measures of Center
Another word for mean
What is average?
The difference between the maximum and minimum values in a data set
What is the range?
A subset selected from a larger population
What is a sample?
A probability distribution where data is evenly distributed around the mean with the two sides being mirror images of the other
What is symmetric?
The 3 in this data set:
2, 3, 3, 3, 5, 7, 7, 8
What is the mode?
The data value that occurs most frequently in a data set
What is mode?
The average distance from the mean
What is standard deviation?
A value that is much larger or much smaller than the other values in a data set
What is an outlier?
A distribution with two peaks
What is bimodal?
The value of 5 with respect to this data set:
1, 3, 4, 4, 5, 7, 7, 9
What is the mean?
The middle value, or average of two middle values, in a data set
What is the median?
Percentage of data represented by the box in a box and whisker plot
What is 50%?
A tactic to make differences in quantities along the vertical axis appear greater than they really are
What is not starting the axis at zero?
A distribution with one peak
What is unimodal?
The value 7 with respect to this data set:
2, 4, 4, 5, 9, 11, 12, 15
What is the median?
Adding all the values in a data set and dividing the sum by the number of values finds this
What is the mean?
The difference between Q3 and Q1
What is the IQR (or interquartile range)?
Associating two factors that seem to have a causal relationship but are not related
What are flawed correlations?
A distribution with a tail on the right side
What is right skew?
The significance of 11 for this data set:
2, 4, 7, 11, 13
What is the range?
A data set does not necessarily have this
What is a mode?
The first step in creating a box and whisker plot
What is list the data values in ascending orer?
Selectively presenting data to support an argument, e.g., choosing only summer months to bolster a global warming argument
What is cherry picking?
A bell-shaped, symmetric distribution where the mean, median, and mode are all the same
What is the normal distribution?
Likely an outlier for this data set:
1, 4, 6, 6, 7, 9, 10, 11, 19
What is 19?