data analysis descriptive data Flashcards

1
Q

mean calc

A

add all numbers
divide by amount of numbers

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2
Q

median calc

A

lowest to highest than find central value

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3
Q

mode calc

A

most frequently occurring value

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4
Q

measures of dispersion - range

A

minus lowest score from highest

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5
Q

measures of dispersion- standard deviation

A

square root of variance calculates SD -

low SD = more data clustered close to mean, hence there’s less data spread

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6
Q

positive skew

A
  • data all on right side
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7
Q

negative skew

A

all the data on the left

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8
Q
A
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