AP Stats Unit 1

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7 Terms

1
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what can we learn from data?

Numbers can convey meaningful info when placed into context and data is all arounds us. being able to comprehend data will help us.

2
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Variable

A characteristic that changes from one individual to another. Something you can record. We collect data on a variable from individuals.

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Two types of variables

Categorical variable and Quantitative variable

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Categorical variable 

Puts into groups or categories (not numbers.) Ex. Eye color, blue, brown, and green 

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Quantitative variable

a variable that represents a numerical value you can measure or do math with. Ex. Height in cm, 165 cm, 170, cm, 190 cm.

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Frequency Table

A list of diff categories someone (or something) could have picked and the diff counts of how many ppl fell into each category.

<p>A list of diff categories someone (or something) could have picked and the diff counts of how many ppl fell into each category. </p>
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Relative Frequency

Turns the counts of frequency table into decimals and percentage.

<p>Turns the counts of frequency table into decimals and percentage. </p>