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Probability: Quiz 2
Probability: Quiz 2
1) We have a fair 6-sided dice. Work out the probability of the following events occurring:
a) the dice landing on a 6
b) the dice landing on 3
c) the dice landing on an even number
d) the dice landing on a number that is greater than 2
e) the dice landing on a number that is 2 or less than 2
f) the dice landing on a number that is less than 10
g) the dice landing on a number that is greater than 7
2) A bag contains 12 balls. 9 of the balls are green and 3 of the balls are red. We pick a ball out of the bag. What is:
a) the probability of picking a green ball?
b) the probability of picking a red ball?
3) A bag contains balls that are either pink, orange or blue. The probability of picking a pink ball is 0.4 and the probability of picking an orange ball is 0.25. What is the probability of picking a blue ball?
4) A bag contains yellow, green and brown balls. The probability of picking a green ball is 0.4. The probability of picking a yellow ball is twice the probability of picking a brown ball. What is:
a) the probability of picking a brown ball?
b) the probability of picking a yellow ball?
5) A football team can win, lose or draw. The team has an even chance of winning and the probability that the team loses is 0.4. What is:
a) the probability that the team wins?
b) the probability that the team draws?
a) the dice landing on a 6
b) the dice landing on 3
c) the dice landing on an even number
d) the dice landing on a number that is greater than 2
e) the dice landing on a number that is 2 or less than 2
f) the dice landing on a number that is less than 10
g) the dice landing on a number that is greater than 7
2) A bag contains 12 balls. 9 of the balls are green and 3 of the balls are red. We pick a ball out of the bag. What is:
a) the probability of picking a green ball?
b) the probability of picking a red ball?
3) A bag contains balls that are either pink, orange or blue. The probability of picking a pink ball is 0.4 and the probability of picking an orange ball is 0.25. What is the probability of picking a blue ball?
4) A bag contains yellow, green and brown balls. The probability of picking a green ball is 0.4. The probability of picking a yellow ball is twice the probability of picking a brown ball. What is:
a) the probability of picking a brown ball?
b) the probability of picking a yellow ball?
5) A football team can win, lose or draw. The team has an even chance of winning and the probability that the team loses is 0.4. What is:
a) the probability that the team wins?
b) the probability that the team draws?