distribution

• normal distribution


  • An arrangement of a data that is symmetrical and forms a bell shaped pattern where the mean, median, and mode all fall in the centre at the highest peak. Examples of data like this includes IQ, shoe size, ad weight in a normal population.
• skewed distribution 


  •  An arrangement of data that is not symmetrical as data is clustered to one end of the distribution. A positive skew is where the data is clustered to the right which means there are few high scores. A negative skew means that data is clustered to the left so there are few low scores.