MEan, Median, Mode, Range, & Quartile Test

Front

What is the mean of a set of numbers?

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 in a data set?

Back

The median is the middle value when the numbers 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 of a set of numbers?

Back

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

Front

What is the range of a set of numbers?

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 upper quartile (Q3)?

Back

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

Front

How do you find the mean of the numbers 4, 5, 5, 2, 3, 3, 2, 8?

Back

Add all the numbers (32) and divide by the count (8). Mean = 32/8 = 4.

Front

How do you find the median of the numbers 1, 3, 3, 6, 7, 8, 9?

Back

Arrange the numbers in order. The median is 6, the middle value.

Front

What is the mode of the numbers 7, 14, 20, 3, 7, 14, 2, 14, 7?

Back

The mode is 7 and 14, as both appear most frequently.

Front

What is the definition of the lower quartile (Q1)?

Back

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