Updated Describing Data Flashcard Unit 7

Front

What is the maximum value in a data set?

Back

The maximum value is the largest number in the data set.

Front

How do you calculate the mean of a data set?

Back

The mean is calculated by adding all the values together and dividing by the number of scores.

Front

What is the interquartile range (IQR)?

Back

The interquartile range is the difference between the upper quartile (Q3) and the lower quartile (Q1) in a data set.

Front

How do you find the median of a data set?

Back

The median is the middle value when the data is arranged in ascending order.

Front

What is the upper quartile (Q3) in a data set?

Back

The upper quartile (Q3) is the median of the upper half of the data set.

Front

What is the lower quartile (Q1) in a data set?

Back

The lower quartile (Q1) is the median of the lower half of the data set.

Front

What does it mean if a data set is skewed?

Back

A skewed data set is one where the values are not symmetrically distributed, causing the mean to differ from the median.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the minimum, first quartile, median, third quartile, and maximum.

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in the data set.

Front

How do you identify outliers in a data set?

Back

Outliers can be identified using the IQR method, where values that are more than 1.5 times the IQR above Q3 or below Q1 are considered outliers.