7.2 Practice (Mean, Median, Mode, Range)

Front

What is the Mean?

Back

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

Front

What is the Median?

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?

Back

The Mode is the number that appears most frequently in a data set. A data set can have more than one mode or no mode at all.

Front

What is the Range?

Back

The Range is the difference between the highest and lowest values in a data set, calculated by subtracting the smallest number from the largest number.

Front

Can a data set have more than one Mode?

Back

Yes, a data set can have multiple modes if two or more numbers appear with the same highest frequency.

Front

How do you find the Mean of the data set: 10, 20, 30, 40?

Back

Mean = (10 + 20 + 30 + 40) / 4 = 25.

Front

Find the Median of the data set: 5, 3, 8, 7, 2.

Back

First, arrange the numbers: 2, 3, 5, 7, 8. The Median is 5.

Front

What is the Mode of the data set: 1, 2, 2, 3, 4?

Back

The Mode is 2, as it appears most frequently.

Front

Calculate the Range of the data set: 15, 22, 8, 30.

Back

Range = 30 - 8 = 22.

Front

What happens to the Mean if you add a new number to the data set?

Back

The Mean will change depending on the value of the new number and the size of the data set.