Question

In a survey of a group of 120 people it was found that:
32 people were at least 65 years old
83 earned at least $50,000 per annum
17 were under 65 years old and earned under $50,000 per annum

Draw a venn diagram to display this information and use it to calculate the probability that a randomly selected person from this group earns at least $50,000 and is under 65 years old