In a company of 400 employees, 250 use a computer and 100 use a telephone as part of their work. The probability that an employee chosen at random neither uses a computer nor a telephone is 0.2. What is the probability that a randomly selected employee uses a telephone and does not use a computer?
Added by Danny C.
Step 1
Since the probability of this is 0.2, we can multiply this by the total number of employees: 0.2 * 400 = 80 employees Now, we know that 250 employees use a computer and 80 employees neither use a computer nor a telephone. So, the remaining employees must use a Show more…
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