Question 4 One of the reasons why the concept of an unfair coin is important in probability is that many real-life experiments can be modeled by a toss of an unfair coin. For example, if the probability of John Rey arriving late to work is 0.33, then recording whether he is late or on-time can be modeled by a toss of an unfair coin for which Heads is associated with Late and Tails with On-Time. Thus, the probability of John Rey arriving to work late 5 times on any 9 days is exactly the same as the probability of getting 5 heads from tossing the coin 9 times and can be computed using the following formula P(KH ) = Cop*(1 - p) -k with n = 9, k = 5, and p = 0.33: P(5H/9) = C9 . 0.335 . 0.671 = 126 . 0.003914 . 0.201511 = 0.0994 Find the probability of John Rey arriving to work late 7 times on any 10 days: (Round the answer to 4 decimal places.) Question Help: Video ) Written Example Message instructor D Post to forum Submit Question Jump to