MEan, Median, Mode, Range, & Quartile Test

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 highest and lowest values in a data set.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What is the interquartile range (IQR)?

Back

The interquartile range is the difference between the upper quartile (Q3) and the lower quartile (Q1), representing the middle 50% of the data.

Front

How do you find the upper quartile (Q3)?

Back

To find Q3, arrange the data in ascending order and find the median of the upper half of the data.

Front

How do you find the lower quartile (Q1)?

Back

To find Q1, arrange the data in ascending order and find the median of the lower half of the data.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values)

Front

What does it mean if a data set has no mode?

Back

If a data set has no mode, it means that no number appears more than once.