Asked by lisa
T1. Gumball machine Boathouse has a gumball machine filled with 50 gum
balls. If you get a black gum ball you get a free poutine! The gum balls are
distributed as follows: 12 red 15 blue 10 yellow 8 green 5 black
1. What is the probability of winning a free poutine? [1 mark]
2. What is the probability of NOT winning a free poutine? [1 mark]
3. What is the probability of buying one gumball and having it be red or
blue? [2 marks]
balls. If you get a black gum ball you get a free poutine! The gum balls are
distributed as follows: 12 red 15 blue 10 yellow 8 green 5 black
1. What is the probability of winning a free poutine? [1 mark]
2. What is the probability of NOT winning a free poutine? [1 mark]
3. What is the probability of buying one gumball and having it be red or
blue? [2 marks]
Answers
Answered by
R_scott
1. (black) / (total)
2. 1 - [(black) / (total)]
3. [(red) + (blue)] / (total)
2. 1 - [(black) / (total)]
3. [(red) + (blue)] / (total)
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