In a class of p students, the average ( arithmetic mean) of the test scores is 70. In another class of n student, the average of the scores for the same test is 92.
When the scores of the two classes are combined, the average of the test scores is 86.
What is the value of P/N?

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?