Lisa, an experienced shipping clerk, can fill a certain order in 11 hours. Tom, a new clerk, needs 12 hours to do the same job. Working together, how long will it take them to fill the order?

The host of a game show is holding a bag with chips to see what prizes the contestants will play for. five (5) of the chips say “new car” ten (10) of the chips say “new tv” three (3) of the chips say “trip to france” contestant named “patty” reaches into the bag. a. what is the probability of choosing a tv chip? b. what is the probability of choosing a car chip next without replacing the 1st chip? c. are these dependent or independent events?