Một hộp đựng 10 viên bi, trong đó có 2 viên bi đỏ. Chọn ngẫu nhiên không hoàn lại lần lượt từng viên bi cho đến khi nhận được 2 viên bi đỏ thì dừng. Tính xác suất để việc chọn bi dừng lại ở lần thứ ba

Write an explicit formula that represents the sequence defined by the following recursive formula:

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

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?