Mean, Median, Mode, Range

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 total count of numbers.

Front

How do you calculate the mean of these numbers: 1, 9, 3, 6, 7, 5, 4, 5, 5?

Back

Add all the numbers (1+9+3+6+7+5+4+5+5 = 45) and divide by the count (9). Mean = 45/9 = 5.

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

Find the mode of these numbers: 4, 4, 6, 6, 2, 2, 6, 2, 4, 2.

Back

The mode is 2, as it appears most frequently.

Front

What is the median of a set of numbers?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the median of these numbers: 2, 57, 38, 42, 6?

Back

First, sort the numbers: 2, 6, 38, 42, 57. The median is 38, the middle number.

Front

What is the range of a set of numbers?

Back

The range is the difference between the largest and smallest numbers in a data set.

Front

Find the range of these numbers: 2, 57, 38, 42, 6.

Back

Range = 57 - 2 = 55.

Front

What is the formula to calculate the mean?

Back

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

Front

What does it mean if a number is the mode?

Back

It means that this number appears more times than any other number in the data set.