Statistic Finial Exam

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Last updated 5:13 PM on 5/10/26
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16 Terms

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Descriptive statistic

describes consists of methods for organizing and summarizing info.

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Inferential statistic

Infers consists of methods for drawing conclusions abt a population based on a sample.

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Quantitative data

Numerical

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Qualitative data

Attributes

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Discrete examples

Number of desks in a room

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Continuous examples

Temperature

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How to find relative Frequency

Divide the frequency of a class by the total # of observations

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3 Standard Deviations Rules that almost all of the data lies

-3 and +3

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75% of the data lies between

-2 and +2

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IQR

Q3 - Q1

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Lower Fence

Q1 -1.5(IQR)=

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Upper Fence

Q3 +1.5(IQR)=

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Natural Number

counting numbers

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Integer

In a Set (-3,-2,-1,0,1,2,3)

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Rational Number

Real numbers that can be expressed as the ratio of two integers

  • All integers are #

  • Can be expressed as decimals which either end or repeat a sequence of digits

Ex: 3=3/1

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Irrational Number

Real Number are Not rational numbers

  • cannot be expressed as a ratio of two integers

  • have decimal representation which DOES NOT end and repeat a sequence of digits

Ex: 0.01001000100001….