Mean, Median, Mode, Range, IQR and MAD

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

What is the median?

Back

The median is the middle value in a set of numbers when they are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode?

Back

The mode is the number that appears most frequently in a data set.

Front

What is the range?

Back

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

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a data set, which represents the 25th percentile.

Front

What is the third quartile (Q3)?

Back

The third quartile (Q3) is the median of the upper half of a data set, which represents the 75th percentile.

Front

What is Mean Absolute Deviation (MAD)?

Back

Mean Absolute Deviation (MAD) is a measure of variability that indicates the average distance between each data point and the mean of the data set.

Front

How do you find the median of the following numbers: 100, 80, 70, 90, 100?

Back

Arrange the numbers in order: 70, 80, 90, 100, 100. The median is 90.

Front

How do you calculate the range of the following numbers: 3, 3, 0, 2, 2, 2, 5, 5, 8, 4?

Back

The maximum value is 8 and the minimum value is 0. The range is 8 - 0 = 8.