Data and Statistics Terms Flashcards

1
Q

A value much greater or much less than the others in a data set.

A

Outlier

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2
Q

(An average) A measure of center in a set of numerical data computed by adding the values in a list and then dividing by the total number of values in the list.

A

Mean

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3
Q

(Middle)
The middle number in a set of numbers that are listed in order (from least to greatest.) The median is the value appearing at the center (or middle) of an odd number of values or “the mean” of the two central values if the list contains an even number of values.

A

Median

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4
Q

The number or numbers that occur most frequently in a set of data; when all numbers occur with the same frequency, we say there is no mode.

A

Mode

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5
Q

Defined as the difference between the highest and lowest values. The range is a measure of spread and it tells us how much a data set is spread out or scattered.

A

Range

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6
Q

A type of bar graph that uses touching bars and shows the frequency of data within equal intervals.

A

Histogram

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7
Q

(lowest number)
The smallest numerical value in a data set

A

Minimum

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8
Q

(highest number)
The largest numerical value in a data set.

A

Maximum

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9
Q

describes the variability of a data set, that is, how the data is spread out and varies from the mean. (includes the range)

A

Spread

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10
Q

A graph that uses dots above a number line to show frequency of data.

A

Dot plot

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11
Q

Data that goes more toward one direction (also called asymmetrical); looks like up a hill or down a hill.

A

Skewed Data

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12
Q

Data that is roughly the same shape on both sides; mean and median are the same

A

Symmetrical Data

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13
Q

These locate the middle of a distribution. The mean, median, and mode.

A

Measures of center

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14
Q

tall spikes in data

A

Peaks

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15
Q

Ignore, put a 5 (This will be edited out later)

A

Did you do it?

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16
Q

A value much greater or much less than the others in a data set.

A

Outlier

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17
Q

(An average) A measure of center in a set of numerical data computed by adding the values in a list and then dividing by the total number of values in the list.

A

Mean

18
Q

(Middle)
The middle number in a set of numbers that are listed in order (from least to greatest.) The median is the value appearing at the center (or middle) of an odd number of values or “the mean” of the two central values if the list contains an even number of values.

A

Median

19
Q

The number or numbers that occur most frequently in a set of data; when all numbers occur with the same frequency, we say there is no mode.

A

Mode

20
Q

This is defined as the difference between the highest and lowest values. This is a measure of spread and it tells us how much a data set is spread out or scattered.

A

Range

21
Q

A type of bar graph that uses touching bars and shows the frequency of data within equal intervals.

A

Histogram

22
Q

(lowest number)
The smallest numerical value in a data set.

A

Minimum

23
Q

(highest number)
The largest numerical value in a data set.

A

Maximum

24
Q

describes the variability of a data set, that is, how the data is spread out and varies from the mean. (includes the range)

A

Spread

25
Q

A graph that uses dots above a number line to show frequency of data.

A

Dot plot

26
Q

Data that goes more toward one direction (also called asymmetrical); looks like up a hill or down a hill.

A

Skewed Data

27
Q

Data that is roughly the same shape on both sides; mean and median are the same

A

Symmetrical Data

28
Q

These locate the middle of a distribution. The mean, median, and mode.

A

Measured of center

29
Q

tall spikes in data

A

Peaks

30
Q

A measure used to describe the distribution of data such as range, interquartile range (IQR), and outliers.

A

Measures of spread

31
Q

skewed, symmetrical, asymmetrical

A

Shape of data distribution

32
Q

difference between upper and lower quartiles in a box plot

A

Interquartile Range (IQR)

33
Q

(also called spread or dispersion) apt or liable to vary or change

A

Variability

34
Q

A graph of plotted points that show the relationship between two sets of data that do not depend on each other where the line is not connected. (Ex. height versus weight)

A

Scatter Plot Graph

35
Q

a diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (outliers).

A

Box and Whisker Plot

36
Q

A question that anticipates and accounts for a variety of answers.

A

Statistical Question

37
Q

a question that has no variability in the data

A

Non-statistical Question

38
Q

Data that consists of numbers

A

Numerical Data

39
Q

labels or names used to identify categories of like items

A

Categorical Data

40
Q

a sample in which every element in the population has an equal chance of being selected

A

random sample

41
Q

a sample in which every element in the population has an equal chance of being selected

A

biased sample

42
Q

the average distance between each data value and the mean

A

Mean absolute deviation (MAD)