Maths
Biology
Chemistry
English Lang.
History
Responding to change (a2 only)
Infection and response
Energy transfers (a2 only)
Homeostasis and response
Cell biology
Biological molecules
Organisation
Substance exchange
The control of gene expression (a2 only)
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
Show all topics
World war two & the holocaust
2d religious conflict and the church in england, c1529-c1570
1c the tudors: england, 1485-1603
Inter-war germany
The fight for female suffrage
Britain & the wider world: 1745 -1901
Medieval period: 1066 -1509
1f industrialisation and the people: britain, c1783-1885
1l the quest for political stability: germany, 1871-1991
2m wars and welfare: britain in transition, 1906-1957
The cold war
2n revolution and dictatorship: russia, 1917-1953
1d stuart britain and the crisis of monarchy, 1603-1702
World war one
Britain: 1509 -1745
Show all topics
El
@wls.065
·
13 Followers
Follow
Edexcel A Level Maths Statistics covers key concepts in sampling, data analysis, and statistical measures. This comprehensive guide explores various sampling methods, the large data set, and essential statistical calculations for A Level Mathematics students.
06/04/2023
752
![Ch1]
was nov
bundmos
random
Statistics
bundnos
population whole set of items that are of interest.
census
a
measure of every member of
a pop](/_next/image?url=https%3A%2F%2Fcontent-eu-central-1.knowunity.com%2FCONTENT%2FtHvpHvbVEvBAzbQPuBAv_image_page_1.webp&w=828&q=75)
This page delves into the Edexcel A Level Maths large data set and introduces measures of central tendency and location.
The large data set focuses on weather data from five UK weather stations and three overseas locations. It includes various weather variables such as:
Example: The large data set runs from 1987 to 2015 and includes UK stations from north to south: Leuchars, Leeming, Heathrow, Hurn, and Camborne.
The page then introduces measures of central tendency:
Definition: Quartiles are points that divide a dataset into four equal parts. The lower quartile (Q1) is 1/4 of the way through the data set, while the upper quartile (Q3) is 3/4 of the way through.
The page also mentions interpolation, a method used to find median, quartiles, and percentages in frequency tables.
![Ch1]
was nov
bundmos
random
Statistics
bundnos
population whole set of items that are of interest.
census
a
measure of every member of
a pop](/_next/image?url=https%3A%2F%2Fcontent-eu-central-1.knowunity.com%2FCONTENT%2FtHvpHvbVEvBAzbQPuBAv_image_page_2.webp&w=828&q=75)
This page focuses on measures of spread and introduces more advanced statistical calculations for A Level Maths.
Two main types of spread are discussed:
Highlight: The range is affected by extreme values, while the IQR is not.
The page then introduces variance and standard deviation:
Definition: Variance is the spread of the data set around the mean, denoted by σ². Standard deviation is the square root of variance, denoted by σ.
Formulas for calculating variance and standard deviation are provided:
σ² = Σ(x - x̄)² / n or σ² = Σx² / n - x̄²
The page also covers coding, a method to simplify calculations:
Example: Coding is usually given in the form y = ax + b, where 'a' affects the standard deviation, and 'b' affects the mean.
This comprehensive guide provides students with essential knowledge for Edexcel A Level Maths Statistics, covering sampling methods, data analysis, and statistical measures.
![Ch1]
was nov
bundmos
random
Statistics
bundnos
population whole set of items that are of interest.
census
a
measure of every member of
a pop](/_next/image?url=https%3A%2F%2Fcontent-eu-central-1.knowunity.com%2FCONTENT%2FtHvpHvbVEvBAzbQPuBAv_image_page_3.webp&w=828&q=75)
This page introduces key concepts in statistics, focusing on sampling methods for A Level Maths Edexcel. It covers the definitions of population, census, and sample, as well as various sampling techniques.
Definition: A population is the whole set of items of interest, while a sample is a selection from the population used to represent the population as a whole.
The page outlines several sampling methods for A Level Maths, including:
Highlight: Each sampling method has its own advantages and disadvantages. For example, simple random sampling is free of bias but not suitable for large populations, while stratified sampling is representative of groups but requires division of the population.
The page also introduces different types of variables:
Vocabulary: A sampling frame is a list of sampling units with each unit given an identifying name or number.
9
167
12/13
standard deviation
maths in biology
20
511
12
AQA Paper 2A Core Maths Notes
(All the revision notes I took) I hope these can help someone because there's barely anything out there for it :) - Danica
391
4973
12/13
Statistics Edexcel Year 12 Full Content
for edexcel maths
3
189
12
Variance and Standard Deviation
Variance and Standard Deviation practice (homework answers Pearson Edexcel)
Average app rating
Pupils love Knowunity
In education app charts in 12 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
Sign up to see the content. It's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
El
@wls.065
·
13 Followers
Follow
Edexcel A Level Maths Statistics covers key concepts in sampling, data analysis, and statistical measures. This comprehensive guide explores various sampling methods, the large data set, and essential statistical calculations for A Level Mathematics students.
![Ch1]
was nov
bundmos
random
Statistics
bundnos
population whole set of items that are of interest.
census
a
measure of every member of
a pop](/_next/image?url=https%3A%2F%2Fcontent-eu-central-1.knowunity.com%2FCONTENT%2FtHvpHvbVEvBAzbQPuBAv_image_page_1.webp&w=2048&q=75)
This page delves into the Edexcel A Level Maths large data set and introduces measures of central tendency and location.
The large data set focuses on weather data from five UK weather stations and three overseas locations. It includes various weather variables such as:
Example: The large data set runs from 1987 to 2015 and includes UK stations from north to south: Leuchars, Leeming, Heathrow, Hurn, and Camborne.
The page then introduces measures of central tendency:
Definition: Quartiles are points that divide a dataset into four equal parts. The lower quartile (Q1) is 1/4 of the way through the data set, while the upper quartile (Q3) is 3/4 of the way through.
The page also mentions interpolation, a method used to find median, quartiles, and percentages in frequency tables.
![Ch1]
was nov
bundmos
random
Statistics
bundnos
population whole set of items that are of interest.
census
a
measure of every member of
a pop](/_next/image?url=https%3A%2F%2Fcontent-eu-central-1.knowunity.com%2FCONTENT%2FtHvpHvbVEvBAzbQPuBAv_image_page_2.webp&w=2048&q=75)
This page focuses on measures of spread and introduces more advanced statistical calculations for A Level Maths.
Two main types of spread are discussed:
Highlight: The range is affected by extreme values, while the IQR is not.
The page then introduces variance and standard deviation:
Definition: Variance is the spread of the data set around the mean, denoted by σ². Standard deviation is the square root of variance, denoted by σ.
Formulas for calculating variance and standard deviation are provided:
σ² = Σ(x - x̄)² / n or σ² = Σx² / n - x̄²
The page also covers coding, a method to simplify calculations:
Example: Coding is usually given in the form y = ax + b, where 'a' affects the standard deviation, and 'b' affects the mean.
This comprehensive guide provides students with essential knowledge for Edexcel A Level Maths Statistics, covering sampling methods, data analysis, and statistical measures.
![Ch1]
was nov
bundmos
random
Statistics
bundnos
population whole set of items that are of interest.
census
a
measure of every member of
a pop](/_next/image?url=https%3A%2F%2Fcontent-eu-central-1.knowunity.com%2FCONTENT%2FtHvpHvbVEvBAzbQPuBAv_image_page_3.webp&w=2048&q=75)
This page introduces key concepts in statistics, focusing on sampling methods for A Level Maths Edexcel. It covers the definitions of population, census, and sample, as well as various sampling techniques.
Definition: A population is the whole set of items of interest, while a sample is a selection from the population used to represent the population as a whole.
The page outlines several sampling methods for A Level Maths, including:
Highlight: Each sampling method has its own advantages and disadvantages. For example, simple random sampling is free of bias but not suitable for large populations, while stratified sampling is representative of groups but requires division of the population.
The page also introduces different types of variables:
Vocabulary: A sampling frame is a list of sampling units with each unit given an identifying name or number.
Biology - standard deviation
maths in biology
9
167
0
Maths - AQA Paper 2A Core Maths Notes
(All the revision notes I took) I hope these can help someone because there's barely anything out there for it :) - Danica
20
511
0
Maths - Statistics Edexcel Year 12 Full Content
for edexcel maths
391
4973
6
Maths - Variance and Standard Deviation
Variance and Standard Deviation practice (homework answers Pearson Edexcel)
3
189
0
Average app rating
Pupils love Knowunity
In education app charts in 12 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
