Probs and Stats- Test 1 Flashcards

1
Q

Mean

A

All numbers in a data set added up then divided by how many numbers there are

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2
Q

Median

A

Middle number of the data set

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3
Q

Mode

A

Most common number (number repeated most often)

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4
Q

Midrange

A

value between biggest and smallest value

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5
Q

Midrange Formula

A

Max Value + Min Value
________________________
2

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6
Q

What’s a parameter

A

Numerical value of the population

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7
Q

Statistic

A

Measurement of sample

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8
Q

M (mew)

A

Population mean

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9
Q

_
X

A

Sample mean

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10
Q

Normal data

A

Naming

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11
Q

Ordinal data

A

Categorized and ranked (pain chart)

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12
Q

Interval data

A

Order without a start (temp) [quantitative]

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13
Q

Symbol for sample standard of deviation

A

s

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14
Q

Symbol for sample size

A

n

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15
Q

Symbol for population standard of deviation

A

Ó

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16
Q

Measuring is _________

A

Continuous (quantitative/any value/continuous series)

17
Q

Counting is ________

A

Discrete (specific, gaps between values)

18
Q

Ratio data

A

Natural 0 (height)

19
Q

Random Sampling

A

Everyone has a chance of being chosen

20
Q

Systematic Sampling

A

Every nth element in population selected from starting point

21
Q

Stratified Sampling

A

Population divided into at least 2 groups that share characteristics, sample drawn from each subgroup

22
Q

Cluster Sampling

A

Population divided into clusters; clusters are randomly selected; EVERYONE from chosen clusters are selected