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MAT 121 Abdellatif Bourhim 2024/2025 full year notes handwritten $30.49
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MAT 121 Abdellatif Bourhim 2024/2025 full year notes handwritten

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Math course notes with examples - all handwritten because every test requires handwritten notes

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  • January 29, 2025
  • 53
  • 2024/2025
  • Class notes
  • Abdellatif bourhim
  • All classes
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maddycarty1
,MAT 121

, G SSA

Quantitative - Cluster sampling Range
· -


Data

Qualitative Data
percentages Sample Standard
· · ·



deviation Formula

Population
Histogram Population standard
·
· ·


Deviation


Dot plot Range
·
·
Parameter ·
pt.
2


·
sample Stemplot

Nomonial Bar Graph
· ·




·
ordinal · Pie Chart

Interval ·
Median

~
Self-selected m Mode
sample

simple random
Midrange
·
*
sample


Super random
·
Population
Sample
Mean

*
systemic Sample Mean
sampling
·
convenience * Mean from
sampling frequency
distribution
·
stratified
Sampling ·
Weighted Mean

, -antitative Data # of counts/measurements (intervals/ ratios
2
types :
1. Discrete counted data (whole #)
6 students in a class
2 .
Continuous measured (weight of adult)
Qualitative Data o names/lables/ numbers (not measurements) -
blood
types,
scales, nomonials

Population - collection of ALL items


Parameter -




characteristics that describe populations (greek letter)
mu p =
population mean


Sigma-V population standard deviation
=




Example Average Salary of All highschool teachers =
$73, 000 a
year
ALL
population highschool teachers

parameter
-



$75, 000

Sample subgroup of
population
characteristic that describes sample-statistic Clatin letter)

T sample
=
mean

S =
Sample standard deviation



Example sample of 20 SU proffessors selected average
,
age
= 45



Population ALL SU proffessors
Sample 20 selected SU proffessors
Statistic
1 45

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