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Key Quiz 2.4
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1
All 800 students at Bri’s school were asked to choose their favourite flavour of ice cream. The results are displayed in the table shown:
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If a student was chosen at random, what is the probability that the student’s favourite flavour is neither chocolate nor vanilla?
A)25%
B)35%
C)40%
D)75%
2
After 20 games, the Vancouver Canucks have won 12 games and lost 8. How many games would you expect them to win at the end of an 82-game season?
A)33 games
B)42 games
C)49 games
D)58 games
3
A basketball player has a 40% chance of scoring from the foul line. If she gets 30 shots off from the foul line during a game, how many baskets would you expect her to get?
A)10 baskets
B)12 baskets
C)14 baskets
D)16 baskets
4
The population of Canada in 2004 was approximately 32 000 000. If a randomly-selected Canadian had a 1.25% chance being blind or visually impaired, how many Canadians in 2004 would you expect to be blind or visually impaired?
A)40 000 000
B)4 000 000
C)400 000
D)40 000
5
If the probability of precipitation is 20% for each of the next two days, then the probability that it will rain at least one of those two days is:
A)4%
B)36%
C)64%
D)80%





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