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

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

Back

Add all the numbers: 4 + 5 + 5 + 2 + 3 + 3 + 2 + 8 = 32. Then divide by the count of numbers (8): 32 / 8 = 4.

Front

What is the median?

Back

The median is the middle value in a set of numbers when they are arranged in order.

Front

How do you find the median of 2, 9, 10, 6, 8?

Back

First, sort the numbers: 2, 6, 8, 9, 10. The median is the middle number, which is 8.

Front

What is the mode?

Back

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

Front

What is the mode of 4, 5, 5, 2, 3, 3, 2, 8?

Back

The mode is 5, as it appears most frequently.

Front

What is the range?

Back

The range is the difference between the highest and lowest values in a data set.

Front

How do you calculate the range of 8, 10, 60, 3, 5, 13, 12, 40, 8?

Back

Range = highest value - lowest value = 60 - 3 = 57.

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