Data Distributions

Question 1

Define Normal Distribution.

Answer 1

Distribution of scores is symmetric.
Mean, Median and Mode sit at the centre of the bell- extreme values on each end.

Question 2

Define Negatively Skewed Distribution

Answer 2

Distribution of scores is asymmetric.
More scores at the higher end of the graph (outliers at lower end)
(Mean < Median < Mode)

Question 3

Define Positively Skewed Distribution.

Answer 3

Distribution of scores is asymmetric.
More scores at the lower end of the graph (outliers at the higher end)
Mode < Median < Mean