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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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22
Q

What is a median?

A

The middle value of an ordered dataset.

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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
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
26
What does standard deviation measure?
The spread of data around the mean.
27
What is variance?
The square of the standard deviation.
28
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
29
What does skewness measure?
The asymmetry of a probability distribution.
30
What does kurtosis measure?
The 'tailedness' of a probability distribution.
31
What is a mean?
The sum of all values divided by the number of values.
32
What is a median?
The middle value of an ordered dataset.
33
What is the mode?
The most frequently occurring value in a dataset.
34
What is range?
The difference between the maximum and minimum values.
35
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
36
What does standard deviation measure?
The spread of data around the mean.
37
What is variance?
The square of the standard deviation.
38
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
39
What does skewness measure?
The asymmetry of a probability distribution.
40
What does kurtosis measure?
The 'tailedness' of a probability distribution.
41
What is a mean?
The sum of all values divided by the number of values.
42
What is a median?
The middle value of an ordered dataset.
43
What is the mode?
The most frequently occurring value in a dataset.
44
What is range?
The difference between the maximum and minimum values.
45
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
46
What does standard deviation measure?
The spread of data around the mean.
47
What is variance?
The square of the standard deviation.
48
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
49
What does skewness measure?
The asymmetry of a probability distribution.
50
What does kurtosis measure?
The 'tailedness' of a probability distribution.
51
What is a mean?
The sum of all values divided by the number of values.
52
What is a median?
The middle value of an ordered dataset.
53
What is the mode?
The most frequently occurring value in a dataset.
54
What is range?
The difference between the maximum and minimum values.
55
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
56
What does standard deviation measure?
The spread of data around the mean.
57
What is variance?
The square of the standard deviation.
58
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
59
What does skewness measure?
The asymmetry of a probability distribution.
60
What does kurtosis measure?
The 'tailedness' of a probability distribution.
61
What is a mean?
The sum of all values divided by the number of values.
62
What is a median?
The middle value of an ordered dataset.
63
What is the mode?
The most frequently occurring value in a dataset.
64
What is range?
The difference between the maximum and minimum values.
65
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
66
What does standard deviation measure?
The spread of data around the mean.
67
What is variance?
The square of the standard deviation.
68
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
69
What does skewness measure?
The asymmetry of a probability distribution.
70
What does kurtosis measure?
The 'tailedness' of a probability distribution.
71
What is a mean?
The sum of all values divided by the number of values.
72
What is a median?
The middle value of an ordered dataset.
73
What is the mode?
The most frequently occurring value in a dataset.
74
What is range?
The difference between the maximum and minimum values.
75
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
76
What does standard deviation measure?
The spread of data around the mean.
77
What is variance?
The square of the standard deviation.
78
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
79
What does skewness measure?
The asymmetry of a probability distribution.
80
What does kurtosis measure?
The 'tailedness' of a probability distribution.
81
What is a mean?
The sum of all values divided by the number of values.
82
What is a median?
The middle value of an ordered dataset.
83
What is the mode?
The most frequently occurring value in a dataset.
84
What is range?
The difference between the maximum and minimum values.
85
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
86
What does standard deviation measure?
The spread of data around the mean.
87
What is variance?
The square of the standard deviation.
88
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
89
What does skewness measure?
The asymmetry of a probability distribution.
90
What does kurtosis measure?
The 'tailedness' of a probability distribution.
91
What is a mean?
The sum of all values divided by the number of values.
92
What is a median?
The middle value of an ordered dataset.
93
What is the mode?
The most frequently occurring value in a dataset.
94
What is range?
The difference between the maximum and minimum values.
95
What is the interquartile range (IQR)?
The difference between the 75th and 25th percentiles.
96
What does standard deviation measure?
The spread of data around the mean.
97
What is variance?
The square of the standard deviation.
98
What is a box plot?
A graphical representation of the median, quartiles, and outliers.
99
What does skewness measure?
The asymmetry of a probability distribution.
100
What does kurtosis measure?
The 'tailedness' of a probability distribution.

Statistics for Machine Learning (9 decks)

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