Cassie was the lucky journalist assigned to cover the Best Beard Competition She recorded the contestants beard colors in her notepad Cassie also noted if the contestants were signed up for the mustache competition later in the day Red beard Grey beard Only in the beard competition Also in the mustache competition 3 1 2 5 What is the probability that a randomly selected contestant is also in the mustache competition given that the contestant has a grey beard Simplify any fractions