graphical representation

what are the five graphical representations?

• line graph

• Bar charts

• Histograms

• pie charts

• Scatter diagram

line grafts

• The least commonly used diagram

• Show linear representations of frequency

• Used to show changes over the time

• Allows us to see trends and patterns at a glance

Bar charts

• show frequencies of non-continuous data

• Effective at displaying the relative sizes of different groups or categories

• You can compare multiple groups within one category

• histograms

• represent the distribution of frequencies for continuous data

• Particularly good at showing weight height and the amount of time something takes

• You have to calculate the frequency density, which is class intervals over width

• pie charts

represent data proportionately

Often used to display answers from single questions within questionnaire

• scattergraph

• represent a relationship or correlation between two or more co-variables

what are distribution curves?

are linear representations of data that include a main medium and Mum score to show a spread of data?

three types of dis distribution

• Normal distribution

• Positive right skewed distribution

• Negative left Q distribution

normal distribution

• The normal distribution is a type of distribution with a mean medium and motor equal this could be referred to as a belt curve

• skewed distribution

• sometimes data can be skewed and it’s distribution, e.g. not central

• When in this case the mode and mean do not fall in the centre of the distribution curve as they do not do in a normal distribution curve

• in a positive right scout distribution, the most common score the mould is lower than the median

• In a negative left cute distribution, the most common score is higher than the medium