A bridal shop is slow with deliveries. If Karen orders her dress6 months before her rehearsal dinner, there is a 75% chance thatthe dress will arrive on time for her rehearsal dinner. If Karenforgets to order her dress 6 months early, there is only a 20%chance that the dress will arrive on time for her rehearsal dinner.Because Karen is so busy planning her wedding, she estimates thatthere is only a 90% chance that she remembers to order her dress 6months early.
a) What is the probability that the dress arrives on time forKaren's rehearsal dinner?
b) If the dress arrives on time, what is the probability thatKaren forgot to order her dress 6 months early?
