# averages and ranges

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what is the mode?
The mode is the number that appears the most.

To find the mode, order the numbers lowest to highest and see which number appears the most often.
Eg 3, 3, 6, 13, 100 = 3
The mode is 3.
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what is the mean?
The mean is the total of the numbers divided by how many numbers there are.

To find the mean, add all the numbers together then divide by the number of numbers.

Eg 6 + 3 + 100 + 3 + 13 = 125 ÷ 5 = 25
The mean is 25.
The mean is not always a whole number
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what is the range?
The range is the difference between the biggest and the smallest number.

To find the range, subtract the lowest number from the biggest number.
Eg 100 - 3 = 97
The range is 97.
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what is the median?
The median is the middle value.

To find the median, order the numbers and see which one is in the middle of the list.
Eg 3, 3, 6, 13, 100 = 6
The median is 6.
If there are two middle values the median is halfway between them. This might not be a whole nu
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how to find the median if there is no exact middle number
Add the two numbers together (in this case 8 and 22) and then divide the total by 2 (8 plus 22 equals 30 and 30 divided by 2 equals 15).
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## Other cards in this set

### Card 2

#### Front

what is the mean?

#### Back

The mean is the total of the numbers divided by how many numbers there are.

To find the mean, add all the numbers together then divide by the number of numbers.

Eg 6 + 3 + 100 + 3 + 13 = 125 ÷ 5 = 25
The mean is 25.
The mean is not always a whole number

### Card 3

#### Front

what is the range?

### Card 4

#### Front

what is the median?

### Card 5

#### Front

how to find the median if there is no exact middle number