100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Summary Everything to memorise for statistics a level £16.66   Add to cart

Summary

Summary Everything to memorise for statistics a level

 11 views  0 purchase

Comprehensive A-level statistics notes, featuring clear explanations, practical examples, key formulas, visual aids, and concise summaries of essential concepts.

Preview 2 out of 11  pages

  • July 26, 2024
  • 11
  • 2023/2024
  • Summary
All documents for this subject (45)
avatar-seller
racheal1
Everything to memorise for statistics

Data collection

Census
measures every member of a population
Adv accurate result
disadv expensive testing may destroy sample


Sampling unit
Individuals of a population

Sampling frame
a list of sampling units


Random Sampling

Simple random sampling
Same chance of being selected use random number lottery
sampling
Adv bias free
disado need a sampling

systematic sampling
take every 4th unit K Itam
for starting point pick a random number between l and k
Adv quick to use
disadu need sampling frame


Stratified sampling
Sample represents groups Strata of a population
898 size of strata for each strata pick randomly
Adv reflects population
disadu pop must be classified in strata

, Non Random Sampling

Quota sampling
like stratified but strata filled by interviewer researcher
Adv no sampling frame
disadv non random potential bias


In nose available at the time
Adv easy cheap
disadu unlikely to be representative of whole population


Types of Data

qualitative
non numerical data


quantitative
numerical data
discrete specific values
continuous value
any

Large Data Set

UK stations
Cambourine
Horn from the
Heathrow botom of the Un
Leeming up
Leuchars v


Costal stations will be windy and wet
South stations are warmer and have more sunlight hours

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller racheal1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £16.66. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

84251 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£16.66
  • (0)
  Add to cart