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Maths
Stats Chap 3
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Cards (16)
What is an
outlier
An extreme value that lies outside the
overall
pattern of the data
Common
way to find the
upper outlier
Q3
+k(Q3-
Q1
)
How to find boundary for
lower outlier
Q1
-k(
Q3
-Q1)
What is the
process
of
cleaning
the data
The process of removing
anomalies
from a data set
What does the
x
on a box plot represent
Outlier
What does the
vertical scale
on a
histogram
represent
frequency density
How to calculate
frequency
Frequency density
x
class width
How to form a
frequency polygon
Joining the middle of the top of each bar in a
histogram
with equal
class widths
If the data has no outliers which should you use to compare the data and why
Mean and standard deviation as the spread of the data is not being affected by anything
If the data has
outliers
, which should you use to compare the data and why
Median
and
interquartile
range as they aren’t affected as much by outliers
What does a
histogram
represent
Continuous data
What do
frequency polygons
allow you to compare
The spread and shape of different
datasets
on one graph
What are
percentiles
Measure of
location
that divides
data sets
into 100 equal parts
How to find the position of a
percentile
COVER IMAGE
What does it mean if the data is
discrete
Values that are only limited to certain
numbers
What is a
continuous variable
When it can taken on an
unlimited
amount of values
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