Representing variation graphically-(10.6)

what is discontinuous variation

a characteristic that can only result in certain values is said to show discontinuous or discrete variation

what is continuous variation

a characteristics that can take any value within a range

they are not controlled by a single gen but a number of genes. They are also often influenced by environmental factors

what does a students t-test compare

looking at whether there is a difference in the mean between 2 separate/ independent groups

what does a spearman’s rank do

allows you to consider the relationships between 2 sets of data