A group of 100 people produced the following information relating to three attributes. The attributes were wearing glasses, being left-handed and having dark hair.
Glasses were worn by 36 people, 28 were left-handed and 36 had dark hair. There were 17 who wore glasses and were left-handed, 19 who wore glasses and had dark hair and 15 who were left-handed and had dark hair. Only 10 people wore glasses, were left-handed and had dark hair.
Represent these data on a Venn diagram.
Find the probability that this person wore glasses but was not left-handed and did not have dark hair.
Find the probability that this person did not wear glasses, was not left-handed and did not have dark hair.
Find the probability that this person had only two of the attributes.
Find the probability that this person wore glasses, given they were left-handed and had dark hair.
11 exam-style questions on Edexcel A Level Old Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.