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#36425

statistics

probability

medium

75 sec

A survey of 100 people asked about their preference for coffee or tea. The results showed that 40 people like coffee, 30 people like tea, and 15 people like both coffee and tea. If one person is selected at random from the surveyed group, what is the probability that the person likes coffee but NOT tea?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.