Mean Median Mode Range

Front

What is the mean of a data set?

Back

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

Front

What is the median of a data set?

Back

The median is the middle value of a data set 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 data set?

Back

The mode is the value that appears most frequently in a data set. A data set may have one mode, more than one mode, or no mode at all.

Front

What is the range of a data set?

Back

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

Front

How do you calculate the mean of the data set: 10, 20, 30, 40, 50?

Back

Mean = (10 + 20 + 30 + 40 + 50) / 5 = 30.

Front

How do you find the median of the data set: 3, 1, 4, 2?

Back

First, arrange the data in order: 1, 2, 3, 4. The median is (2 + 3) / 2 = 2.5.

Front

How do you identify the mode in the data set: 2, 3, 4, 4, 5, 5, 5?

Back

The mode is 5, as it appears most frequently.

Front

What is the range of the data set: 15, 25, 35, 45?

Back

Range = 45 - 15 = 30.

Front

In a real-world scenario, how is the mean useful?

Back

The mean provides an average value, which can help in understanding overall trends, such as average test scores in a class.

Front

In a real-world scenario, how is the median useful?

Back

The median helps to understand the middle point of a data set, which is useful in income data to avoid skewing by outliers.