Presentation of quantitative data Flashcards

1
Q

What is a table?

A

Quantitative data is converted to descriptive statistics and can be summarised

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2
Q

What is a bar chart?

A

A type of graph in which the frequency of each variable is represented by the height of the separate bars

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3
Q

What is a histogram?

A

A type of graph in which the area of each bar represents frequency

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4
Q

What is a scattergram?

A

A graph that represents the strength and direction of a relationship between co-variables

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5
Q

What are the types of distribution?

A

Normal, positive and negative

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6
Q

Where is normally distributed data located?

A

Centrally around the mean

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7
Q

How is a normal distribution curve drawn?

A

As a bell which is symmetrical

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8
Q

What is the relationship between the mean, median and mode in normal distribution?

A

Mean = median = mode

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9
Q

What is example of normally distributed data?

A

IQ

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10
Q

Where is data located on a positively skewed graph?

A

Mostly on the left

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11
Q

What is the relationship between the mean, median and mode in positively skewed distribution?

A

Mean > median > mode

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12
Q

What is an example of positively skewed data?

A

Income

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13
Q

Where is data located on a negatively skewed graph?

A

Mostly on the right

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14
Q

What is the relationship between the mean, median and mode in negatively skewed distribution?

A

Mode > median > mean

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15
Q

What is an example of negatively skewed data?

A

Lesson attendance

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16
Q

How is a positively skewed graph drawn?

A

Tail skews up

17
Q

How is a negatively skewed graph drawn?

A

Tail skews down

18
Q

What are graphs?

A

A visual representation of summarised data

19
Q

What’s the difference how a bar chart and histogram are drawn?

A

A bar chart needs gaps between bars which a histogram doesn’t