A bag contains only red, green and blue counters. What is the probability of choosing a blue counter?
0.2
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20
A tombola has balls numbered from 1 to 50. What is the probability of picking a prime number?
15/50 (or any variation)
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5
A weather forecaster states that the probability of it raining tomorrow is 3/7. what is the probability that it will not rain tomorrow?
4/7
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10
When rolling a dice, what is the probability of throwing a square number?
2/6 (or any variation)
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5
What is the probability of getting a number greater than 5?
3/8
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10
What is the probability of someone being born on a Friday?
1/7
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10
What is the probability of the spinner not landing on red?
7/10 (or any variation)
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banana
Go to last place!
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fairy
Take points!
5
10
15
20
25
rocket
Go to first place!
Okay!
thief
Give points!
5
10
15
20
25
15
The probability of picking blue or green is the same. What is it?
0.22
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25
The probability that a biased dice will land on a five is 0.3. If the dice is rolled 400 times,work out an estimate for the number of times the dice will land on a five.
120
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20
If you spin the spinner and toss the coin at the same time, how many possible outcomes are there?
12
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25
A company manufactures sports equipment. The probability that a piece of equipment will be faulty is 0.005 If 1000 pieces of equipment are made, approximate how many are likely to be okay?
995
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25
A bag contains 400 coloured counters, which are either red, blue or green. There are 92 red counters. The probability that a blue counter is chosen is 0.13. Calculate the number of green counters.
256
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25
The probability of choosing black is twice that of choosing green. What is the probability of choosing green?