Flashback - Mean, median, mode and range

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 number of items.

Front

What is the median?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of items, 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 set of numbers.

Front

What is the range?

Back

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

Front

How do you find the mean of 18, 2, 0, 0, 0?

Back

Add the numbers: 18 + 2 + 0 + 0 + 0 = 20. Then divide by the number of items (5): 20 ÷ 5 = 4.

Front

How do you find the median of 4, 2, 7, 4, 3?

Back

First, sort the numbers: 2, 3, 4, 4, 7. The median is the middle number, which is 4.

Front

How do you find the mode of 12, 10, 10, 10, 13, 12, 11, 13, 10?

Back

The number that appears most frequently is 10, so the mode is 10.

Front

What is the formula to find the mean?

Back

Mean = (Sum of all items) ÷ (Number of items).

Front

What is the range of scores 155, 165, 138, 172, 127, 193, 142?

Back

The highest score is 193 and the lowest is 127. Range = 193 - 127 = 66.

Front

If a set of numbers is 5, 7, 9, what is the median?

Back

The median is 7, as it is the middle number.