B (Bachelor's Degree)	B- (No Bachelor's Degree)
H (High Performer)
H- (Not high performer)

A business collected data on its 70 employees to see if their level of education was tied in any way to their performance on the job. It was found that 20 had a bachelor's degree, 12 could be said to be 'high performers' and 10 had a bachelor's degree AND were high performers. Find the probability that a worker chosen at random has a bachelor's degree. Give your answer to three decimal places (x.xxx)

*Hint - fill out the following contingency table to help in your answer.