In words, what is the probability of being younger tomorrow than you are today?
impossible
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
What is the probability of the spinner not landing on red?
7/10 (or any variation)
If you spin the spinner and toss the coin at the same time, how many possible outcomes are there?
12
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
The probability of catching flu is 0.38. What is the probability of not catching flu?
0.62
A bag contains only red, green and blue counters. What is the probability of choosing a blue counter?
0.2
The probability of picking blue or green is the same. What is it?
0.22
The probability of choosing black is twice that of choosing green. What is the probability of choosing green?
0.2
When rolling a dice, what is the probability of throwing a square number?
2/6 (or any variation)
What is the probability of getting a number greater than 5?
3/8
What is the probability of someone being born on a Friday?
1/7
What is the probability of someone being born in January?
1/12
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
A tombola has balls numbered from 1 to 50. What is the probability of picking a prime number?
15/50 (or any variation)
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
