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Title: Statistics 1
Description: All-In-One Page Notes Revision notes made for the Statistic 1 Edexcel A-Level module (content will overlap with most statistic modules). I've personally condensed the entire module into a clear and detailed overview all on only one page! It contains all the necessary content for that A*. Happy revising :)
Description: All-In-One Page Notes Revision notes made for the Statistic 1 Edexcel A-Level module (content will overlap with most statistic modules). I've personally condensed the entire module into a clear and detailed overview all on only one page! It contains all the necessary content for that A*. Happy revising :)
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S1 Revision Notes
∑ 𝑥
∑ 𝑓𝑥
Mean: 𝜇 =
For large data: use coding to work out mean of coded data, then equate to coding for original mean
Linear interpolation (for some x): using your bivariate date, sketch x against f(x)
...
5 x interquartile range
o
Less than the lower quartile – 1
...
g
...
g
...
,n:
𝑛+1
o
𝐸(𝑋) =
o
Probability
Key Words: Venn diagrams, Mutually Exclusive, Exhaustive, Independent, Complementary, Conditional Probability
Mutually Exclusive: events that cannot happen at the same time e
...
passing and failing an exam
𝑛
𝑉𝑎𝑟(𝑎𝑋 + 𝑏) =
2
(𝑛+1)(𝑛−1)
12
Normal Distribution
Key Words: random variable, mean, standard deviation
If 𝑋 ~ 𝑁( 𝜇, 𝜎²)
o
𝑍 ~ 𝑁( 0,1²) where 𝑍~
𝛷(𝑧) = 𝑃(𝑍 < 𝑧)
P(X≤ 𝑍 ≤ 𝑌) = 𝛷(𝑌) − 𝛷(𝑋)
𝑋−𝜇
𝜎
(called standardising)
Title: Statistics 1
Description: All-In-One Page Notes Revision notes made for the Statistic 1 Edexcel A-Level module (content will overlap with most statistic modules). I've personally condensed the entire module into a clear and detailed overview all on only one page! It contains all the necessary content for that A*. Happy revising :)
Description: All-In-One Page Notes Revision notes made for the Statistic 1 Edexcel A-Level module (content will overlap with most statistic modules). I've personally condensed the entire module into a clear and detailed overview all on only one page! It contains all the necessary content for that A*. Happy revising :)