Handling Data 7
1 mark · EasyThe probability that it rains on a day is 0.3. Given that it rained yesterday, the probability that it will rain today is 0.4. What is the probability that it rains today, given that it rained yesterday?
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0.4 (±0)
Common mistakes: Stating 0.3 instead of 0.4 (not using the correct conditional probability)
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Marking points
A1 · 1 mark · Correctly gives the probability that it rains today given it rained yesterday as 0.4.
Worked solution
The probability that it rains today given it rained yesterday is given in the question as 0.4.