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Statistics - Coggle Diagram
Statistics
Measures of location and spread
The mode
The mode is the most common value in a set of data
The median
The median is the middles number
The mean
The mean is the average
Range
The range for a set of data is the highest value of the set minus the lowest
Interquartile range
the lower quartile is the value one quarter of the way into the data
the upper quartile is the value three quarters of the way into the data
the upper quartile minus the lower quartile is the interquartile range
Questionnaires
avoiding bias
opinion scales
multi-response questions
a set of questions designed to obtain data from a set of individuals
Collecting Data
Types of data
Discrete data
The number of goals scored by a soccer team
The number of desks in the classroom of the school
The marks acheived in a test
Continuous data
The heights of students in a class
The speed of cars on the road
Time taken to complete a 100 metre sprint
Categorical data
Gender
country of birth
ordinal data
type of house
attendance of football matches
opinion scales
Univariate data
colour of eyes
distance from school
height in centemeters
Bivariate data
the age of car and price of car
hours a week spent studying and scores in an exam
primary data
:carrying out an expiriment
questionnaire
investigations
secondary data
internet
tables and charts in newspapers
published statistics