Introductory statistics Flashcards

(11 cards)

1
Q

Data set: a collection of ____ or _____. These values do ____ need to be ______. But need to convey _____.

A

Data
Values
Not
Numeric
Meaning

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2
Q

Mode: the most ____ number

A

Common

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3
Q

Median: the ____ value of the data set

A

Middle

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4
Q

DATA SET MUST BE ______.

A

Sorted.

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5
Q

Mean/Average: The ____ of all values ___ by the number of _____

A

Sum, divide values.

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6
Q

Range: the ______ between the ____ and the _____ number

A

Difference
Highest
Lowest

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7
Q

Outlier: a ____ that does not ____ in with the rest of the _____.

A

Value fit data

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8
Q

Standard deviation; a ___ of variation of data from the ____.

A

Measure mean

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9
Q

Standard deviation: s.d. of a numerical data set is a measure of how much a typical value in the data set ____ from the mean.

A

Differs

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10
Q

Steps for setting up a table for standard deviation:
1. Fill in _____
2. Add final _______.
3. Divide by ____&.
4. S____ r____ √(###)

A
  1. Table
  2. numbers
  3. Number
  4. Square root
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11
Q

Standard deviation table anf after steps:

A
  • X,
    -line on top x,
  • x- line on x,
  • (x- line on x)^2
  • add last number from table
  • divide sum with number of how many numbers their are,
  • 2nd square answer
  • O WITH HAIR STICKING OUT = 2nd square answer
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