A group of 30 students were asked about their favourite topping for toast. 18 liked peanut butter (A) 10 liked jam (B) 6 liked neither. Find the number of students who like both peanut butter and jam.
4
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thief
Give points!
5
10
15
20
25
fairy
Take points!
5
10
15
20
25
fairy
Take points!
5
10
15
20
25
lifesaver
Give 10 points!
Oops!
15
A ticket is randomly selected from a basket containing 4 green, 5 yellow, and 6 blue tickets. Determine the probability of getting: a blue or orange ticket
P(B or O)= 6/15 + 0 = 2/5
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15
answer question b
2/5
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25
Display the possible results when two dice are rolled and the scores are added together. What is the probability that the sum of the dice is 10.
3/36 = 1/12
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15
A coin and pentagonal spinner with sectors 1 through 5 are tossed and sun respectively. Determine the chance of getting an odd number.
2/5
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25
answer question a
a = 3, b = 3
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seesaw
Swap points!
Oops!
magnet
Take 20 points!
Okay!
shark
Other team loses 25 points!
Okay!
baam
Lose 20 points!
Oops!
monster
Reset all scores!
Oops!
gift
Win 15 points!
Okay!
gift
Win 25 points!
Okay!
banana
Go to last place!
Oops!
15
answer question b ii
1/10
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lifesaver
Give 10 points!
Oops!
star
Double points!
Okay!
gift
Win 20 points!
Okay!
banana
Go to last place!
Oops!
10
Find the probability that a student chosen at random is male.
= 91/150 (0.607, 60.6%, 60.7%)
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15
answer question c
17/50
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15
A coin and pentagonal spinner with sectors 1 through 5 are tossed and sun respectively. Determine the chance of getting a head and a prime number.
3/10
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20
Find the probability that a student chosen at random is either male or studies Chemistry.