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Probability for Year 8s Flashcards | StudBud
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Probability for Year 8s
Probability for Year 8s
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38 plays
A probability quiz #math #maths #data #statistics #probability
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
Bessy and Amelia race each other. Bessy is 4 times likelier to win than Amelia. Does P(Amelia wins) = 1/5?
True
False
2
9 chocolate and 6 plain biscuits are in a jar. What is the probability I randomly pick plain?
2/5
6/9
1/3
3/5
3
When rolling two 6-sided dice and adding the faces, what is the probability of scoring 12?
1/6
1/36
1/12
12/36
4
Using the table of club members pictured, find the probability of picking a girl?
54/68
54
0.54
11%
5
Solve this problem
32
29
33
35
6
Solve this Problem!
14
16
24
12
7
The probability of rain tomorrow is 0.63. What is the probability of it not raining tomorrow?
0.27
0.47
0.37
0.63
8
Tony throws a die 200 times and a 6 comes up 42 times. What is the relative frequency?
6/42
42/6
21/100
6/200
9
Using the table of club members pictured, find the probability of picking an 18+ boy?
25/68
25/46
1/4
0.25
10
Tony throws a die 200 times and a 6 comes up 42 times. What is the favourable outcome?
42
200
die
6
11
What is the probability of flipping a tail on a coin?
0.2
0.1
0.5
1
12
5 green, 6 blue, 7 red counters in a bag. What is the probability of picking red or green?
2/3
4/9
5/9
1/3
13
5 green, 6 blue, 7 red counters in a bag. What is the probability of picking blue?
3/8
1/3
2/5
6/17
14
HINT: DRAW A TREE DIAGRAM
\left(\frac{5}{56}\right)+\left(\frac{9}{56}\right)
\frac{5}{8}\times\frac{3}{7}
\left(\frac{6}{56}\right)+\left(\frac{20}{56}\right)
\frac{5}{8}+\frac{4}{7}+\frac{3}{8}+\frac{2}{7}
15
When rolling two 6-sided dice and multiplying the faces, what's P(greater than 20)?
5/36
1/6
1/3
1/18
16
What is the probability of rolling a 2 on a six-sided dice?
2/6
1/2
1/6
1/3
17
5 green, 6 blue, 7 red counters in a bag. What is the probability of not picking green?
3/8
5/18
13/18
2/3
18
Which of the events below has a probability of 5/6 when rolling a six-sided dice?
P(rolling greater than 1)
P(rolling more than 2)
P(rolling a 5)
P(rolling 5 or higher)
