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Sample spaces and experimental probability
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Sample spaces and experimental probability
Sample spaces and experimental probability
Example 1
A bag contains 8 red and 6 blue counters. One counter is chosen at random. What is the probability it is red?
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Answer: 74
- 8 of the 14 equally likely counters are red.
- 74.
Example 2
Tickets numbered 1 to 15 are equally likely to be chosen. What is the probability of choosing a multiple of 3?
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Answer: 31
- There are 5 multiples of 3 from 1 to 15.
- Probability =31.
Example 3
A spinner lands on blue 7 times in 28 spins. Use these results to estimate the probability of blue on the next spin.
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Answer: 41
- Experimental probability =all spinsblue results=41.
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