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SST > Basic Statistics > Flashcards

Basic Statistics Flashcards

1
Q

class limit?

A
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2
Q

class boundaries?
how to find it?

just recognize

A
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3
Q

class mark?

A

midpoint
how to find for a class
sum/2

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4
Q

cumulative frequency? how to find it?

A
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5
Q

in histogram what is x axis and y axis for both kind of?

A

data
continuous discrete

there is always frequency so no ungrouped data

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6
Q

what is cumulative frequency distribution?

A

less than cumulative frequency distribution

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7
Q

ogive?
frequency is always on?

A

cumulative frequency polygon
y axis

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8
Q

frequency polygon and cumulative frequency polygon?

A

FP: F & Midpoints
CFP: F & class boundaries

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9
Q

measure of central tendency?

A
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10
Q

X bar? how to find it? formula?

A

ungrouped
grouped

mean

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11
Q

median? symbol? fomulas?

A

ungrouped
grouped : discrete continuous

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12
Q

formula for finding median for continuous grouped data? label

A

pg 124

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13
Q

mode? symbol? formulas? label

A

pg 126

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14
Q

geometric mean? symbol formula? label

A
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15
Q

harmonic mean? symbol formula? label

A
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16
Q

weighted mean? formula? label? symbol

17
Q

moving averages? solve one?

18
Q

measures of dispersion? explain first one?

19
Q

define variance? symbol formulas?

A

general
ungrouped
grouped

20
Q

define standard deviation? formulas? symbol

A

general
ungrouped
grouped

21
Q

find mean of ungrouped data?
find harmonic mean for ungrouped data?
median of ungrouped data?

SST (5 decks)

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