As one quantity increases, the other decreases . e.g. Speed and Time. The faster you travel, the less time the journey takes. The formula for indirect proportion is y = k/x. K is the constant of proportionality. This can also be written as xy=k

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Mode

Most common

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Median

Middle value when written in order. If there are two middle values e.g. 3 and 7 add together and divide by 2 to find the median

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Mean

Add all values together, then divide by the total number of values

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Range

Difference between the largest and the smallest numbers

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Discrete Data

Has definite values with no inbetweens. It could be a number or category e.g. hair colour,number of pets.

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Continuous Data

Has infinite values. Usually needs to be measured, e.g. time taken to get to school or height.

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Bisect

Cut exactly in half.

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Perpendicular Bisector

At 90°

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Other cards in this set

Card 2

Front

Most common

Back

Mode

Card 3

Front

Middle value when written in order. If there are two middle values e.g. 3 and 7 add together and divide by 2 to find the median

Back

Card 4

Front

Add all values together, then divide by the total number of values

Back

Card 5

Front

Difference between the largest and the smallest numbers

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