if mean > median, then .................. (مهم اوووي)
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83%
Right skewed
13%
Left skewed
4%
Both of them
if median > mean, then.......... (مهم اوي)
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10%
right skewed
85%
left skewed
4%
None of them
1%
Both of them
The information is recorded as numbers and represents an objective measurement or a count
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95%
Quantitative
5%
Qualitative
Taste, eye, colour, architectural style
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9%
Quantitative variables
91%
Qualitative variables
The information represents characteristics that you do not measure with number
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10%
Quantitative variables
90%
Qualitative variables
Histograms are a standard way to graph .............. variables.
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81%
continuous
19%
discrete
Data recorded in the sequence in which they are collected and before they are processed or ranked.
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13%
ungrouped data
87%
Raw Data
Data sets are organized into tables, and data are displayed using ..........
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8%
tree
92%
graphs
A frequency distribution for qualitative data lists all categories and the number of elements that belong to each of the categories.
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91%
T
9%
F
Relative frequency of a category =
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10%
Frequency of that category * Sum of all frequencies
90%
Frequency of that category / Sum of all frequencies
Data presented in the form of a frequency distribution are called ungrouped data.
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28%
T
72%
F
The bar graph and the pie chart are two common types of graphs that are used to display quantitative data.
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49%
T
51%
F
A graph made of bars whose heights represent the frequencies of respective categories
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92%
Bar Graph
8%
pie chart
to construct a bar graph (bar chart), we mark the various categories on the vertical axis.
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50%
T
50%
F
Bar charts can also be used to give a visual comparison of two or more groups.
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90%
T
10%
F
When constructing a comparative bar graph we use the ............... rather than the .......... to construct the scale on the vertical axis
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82%
relative frequency -frequency
18%
frequency-relative frequency
Pie charts are most effective for summarizing data sets when there are too many different categories
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48%
T
52%
F
The class .......... is also called the class size.
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12%
Boundary
83%
width
5%
midpoint