Statistics notes

Candlepiecheese
Flashcards by Candlepiecheese , updated more than 1 year ago
Candlepiecheese
Created by Candlepiecheese over 7 years ago
20
1

Description

Higher Maths Flashcards on Statistics notes, created by Candlepiecheese on 11/23/2013.

Resource summary

Question Answer
What is statistics? Collecting, analysing, interpreting and presenting data
What is a variable? Characteristic being recorded
Define data Unordered list
Define information When data becomes ordered
Nominal Can't be ordered at all, eg; hair color
Ordinal Can be arranged in some way, eg; exam grade
Discrete Can only have certain values, eg; age
Continuous No exact value and can be ordered, eg; weight
How can information be displayed? Bar chart, pie chart, stem and leaf, histogram and scatter plot
Another word for average Central tendency
Another word for spread Measuring variability
What is a census? A survey of the whole population
What is the population? Entire group being studied
What is the sample? Group selected from the population
What is a parameter? Numerical measurement describing some characteristic of a population
What is a statistic? Numerical measurement describing some characteristic of a sample
What's a simple random sample? Every person has an equal chance of being selected
What is a stratified random sample? Population split into subgroups then simple random sampled
What's a systematic random sample? Random number picked, eg; 17, so every 17th person is picked
What is cluster sampling? Population randomly divided into groups and some tested
What is quota sampling? No probability, companies use this, population not random
What is convenience sampling? Where the subjects are chosen in the most convenient way possible
Show full summary Hide full summary

Similar

Using GoConqr to study Maths
Sarah Egan
GCSE Maths Symbols, Equations & Formulae
Andrea Leyden
New GCSE Maths
Sarah Egan
Fractions and percentages
Bob Read
GCSE Maths: Understanding Pythagoras' Theorem
Micheal Heffernan
CUMULATIVE FREQUENCY DIAGRAMS
Elliot O'Leary
GCSE Maths Symbols, Equations & Formulae
livvy_hurrell
Maths GCSE - What to revise!
livvy_hurrell
STEM AND LEAF DIAGRAMS
Elliot O'Leary
GCSE Maths: Geometry & Measures
Andrea Leyden
HISTOGRAMS
Elliot O'Leary