A game consists of randomly choosing a bag (labelled 1, 2 or 3) out of a choice of 100, and then again randomly, picking a ball
(red or black) from it. Each bag has the same total number of balls (10)
a) complete the tree diagram
b) Work out the probability that a player will select a red ball
c) the same player is going to play the game 200 times consecutively. How many black balls should he expect to pick?
a) complete the tree diagram
b) Work out the probability that a player will select a red ball
c) the same player is going to play the game 200 times consecutively. How many black balls should he expect to pick?
1 answer:
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