Math vocab

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11 Terms

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Population

all members of a group

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Sample

a random selection of members from a group

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Sample proportion

The percentage taken from a random sample

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Sample mean

The average calculated from measurements of a random sample

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Bias

a distortion that makes data inaccurate

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Independent Events

Events that don’t impact one another

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z score

how many standard deviations above (positive) or below (negative) the mean number is

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Sample space

a list of all possible outcomes from an event

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Normal distribution

data takes on a bell shaped curve based on mean and stndard deviation.

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binomial

we want probability for a set number of trials

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Geometric

we want the probability of the first success