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Statistics for Machine Learning > 3. Descriptive Statistics > Flashcards

3. Descriptive Statistics Flashcards

1
Q

What is a mean?

A

The sum of all values divided by the number of values.

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2
Q

What is a median?

A

The middle value of an ordered dataset.

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3
Q

What is the mode?

A

The most frequently occurring value in a dataset.

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4
Q

What is range?

A

The difference between the maximum and minimum values.

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5
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

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6
Q

What does standard deviation measure?

A

The spread of data around the mean.

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7
Q

What is variance?

A

The square of the standard deviation.

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8
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

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9
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

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10
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

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11
Q

What is a mean?

A

The sum of all values divided by the number of values.

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12
Q

What is a median?

A

The middle value of an ordered dataset.

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13
Q

What is the mode?

A

The most frequently occurring value in a dataset.

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14
Q

What is range?

A

The difference between the maximum and minimum values.

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15
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

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16
Q

What does standard deviation measure?

A

The spread of data around the mean.

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17
Q

What is variance?

A

The square of the standard deviation.

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18
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

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19
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

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20
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

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21
Q

What is a mean?

A

The sum of all values divided by the number of values.

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3
4
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22
Q

What is a median?

A

The middle value of an ordered dataset.

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3
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23
Q

What is the mode?

A

The most frequently occurring value in a dataset.

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24
Q

What is range?

A

The difference between the maximum and minimum values.

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25
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

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26
Q

What does standard deviation measure?

A

The spread of data around the mean.

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27
Q

What is variance?

A

The square of the standard deviation.

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28
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

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29
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

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30
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

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31
Q

What is a mean?

A

The sum of all values divided by the number of values.

How well did you know this?
1
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2
3
4
5
Perfectly
32
Q

What is a median?

A

The middle value of an ordered dataset.

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2
3
4
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33
Q

What is the mode?

A

The most frequently occurring value in a dataset.

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34
Q

What is range?

A

The difference between the maximum and minimum values.

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3
4
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35
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

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3
4
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36
Q

What does standard deviation measure?

A

The spread of data around the mean.

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3
4
5
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37
Q

What is variance?

A

The square of the standard deviation.

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3
4
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38
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

How well did you know this?
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3
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39
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

How well did you know this?
1
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2
3
4
5
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40
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

How well did you know this?
1
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2
3
4
5
Perfectly
41
Q

What is a mean?

A

The sum of all values divided by the number of values.

42
Q

What is a median?

A

The middle value of an ordered dataset.

43
Q

What is the mode?

A

The most frequently occurring value in a dataset.

44
Q

What is range?

A

The difference between the maximum and minimum values.

45
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

46
Q

What does standard deviation measure?

A

The spread of data around the mean.

47
Q

What is variance?

A

The square of the standard deviation.

48
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

49
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

50
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

51
Q

What is a mean?

A

The sum of all values divided by the number of values.

52
Q

What is a median?

A

The middle value of an ordered dataset.

53
Q

What is the mode?

A

The most frequently occurring value in a dataset.

54
Q

What is range?

A

The difference between the maximum and minimum values.

55
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

56
Q

What does standard deviation measure?

A

The spread of data around the mean.

57
Q

What is variance?

A

The square of the standard deviation.

58
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

59
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

60
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

61
Q

What is a mean?

A

The sum of all values divided by the number of values.

62
Q

What is a median?

A

The middle value of an ordered dataset.

63
Q

What is the mode?

A

The most frequently occurring value in a dataset.

64
Q

What is range?

A

The difference between the maximum and minimum values.

65
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

66
Q

What does standard deviation measure?

A

The spread of data around the mean.

67
Q

What is variance?

A

The square of the standard deviation.

68
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

69
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

70
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

71
Q

What is a mean?

A

The sum of all values divided by the number of values.

72
Q

What is a median?

A

The middle value of an ordered dataset.

73
Q

What is the mode?

A

The most frequently occurring value in a dataset.

74
Q

What is range?

A

The difference between the maximum and minimum values.

75
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

76
Q

What does standard deviation measure?

A

The spread of data around the mean.

77
Q

What is variance?

A

The square of the standard deviation.

78
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

79
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

80
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

81
Q

What is a mean?

A

The sum of all values divided by the number of values.

82
Q

What is a median?

A

The middle value of an ordered dataset.

83
Q

What is the mode?

A

The most frequently occurring value in a dataset.

84
Q

What is range?

A

The difference between the maximum and minimum values.

85
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

86
Q

What does standard deviation measure?

A

The spread of data around the mean.

87
Q

What is variance?

A

The square of the standard deviation.

88
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

89
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

90
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

91
Q

What is a mean?

A

The sum of all values divided by the number of values.

92
Q

What is a median?

A

The middle value of an ordered dataset.

93
Q

What is the mode?

A

The most frequently occurring value in a dataset.

94
Q

What is range?

A

The difference between the maximum and minimum values.

95
Q

What is the interquartile range (IQR)?

A

The difference between the 75th and 25th percentiles.

96
Q

What does standard deviation measure?

A

The spread of data around the mean.

97
Q

What is variance?

A

The square of the standard deviation.

98
Q

What is a box plot?

A

A graphical representation of the median, quartiles, and outliers.

99
Q

What does skewness measure?

A

The asymmetry of a probability distribution.

100
Q

What does kurtosis measure?

A

The ‘tailedness’ of a probability distribution.

Statistics for Machine Learning (9 decks)

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