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Statistics Grade 10&11 Summary with Key Points
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  • Course
  • Mathematics
  • Institution
  • 12

A basic summary of statistics from grade 10 and 11 IEB curriculum Explanations and diagrams Still need to practice and view a selection of notes in correlation to these when studying!!! Practice !

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Document information

  • August 21, 2021
  • 7
  • 2021/2022
  • Summary

Subjects

  • math
  • math core
  • ieb
  • statistics
  • grade 10
  • grade 11
  • box and whisper
  • ogives
  • stem and leaf
  • stats
  • outliers
  • standard deviation

Written for

  • 12
  • Mathematics
  • 200
All documents for this subject (206)

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Content preview

Statistics 10.11.12


Stem and Leaf
diagrams
used to
organise data
ordered from smallest to
biggest
example 48 ,
51 ,
56 52 64 45 ,
60 , 52 ,
71 63
, ,
, ,



stem
stem leaf leaf
4 5 8
5 1226
has 1
6
7-
034
1
Data
digit ,
stem is




Other to represent data
ways :




The Mean ✗

of all the data
average

* add all data values divide total
then
by the
number of data values




✗ = E. ✗
n

, The Mode
occurs the most often ,
has the
highest frequency
Hoo set of data can have more than 1 mode
Ñ0• You can find the mode of
categorical data


example 5 ,
9 ,
12,5 ,
3
,
11
,
8 ,
3


mode : 5313


mode >
highest frequency




The Median M

middle data if
value in
ascending order


position median number data values
nztl
of = * n =
of




example 6,9 ,
12 ,
5 , 3,11 ,
8,3

order 11 12
ascending :
3,3 ,
5,6 , 8,9 , ,




between M
6zt8_
these
:
=



2

= 7


The Range
measure of dispersion

range
=

highest data valve -

lowest data value

data
** No
range
of
categorical

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