Handling Data 4
2 marks · EasyA class records the number of times it rains in London over 10 consecutive days. Rain is recorded on 4 of the days.
Estimate the probability that it rains in London on any given day during this period.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(±0.02)
Also accept: 2/5
Common mistakes: 4/6 (wrong denominator)
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Marking points
M1 · 1 mark · Counts correct number of rainy days and total days.
A1 · 1 mark · Gives answer as 0.4 (or equivalent fraction 2/5)
Worked solution
Probability = 4/10 = 0.4 or 2/5