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The table shows the probabilities that a biased dice will land on 2, on 3, on 4, on 5 and on 6 Number on dice | 1 | 2 | 3 | 4 | 5 | 6 | Probability | 0.17 | 0.18 | 0.09 | 0.15 | 0.1 | Neymar rolls the biased dice 200 times Work out an estimate for the total number of times the dice will land on 1 or 3. - Edexcel - GCSE Maths - Question 1 - 2017 - Paper 2

Question 1

The-table-shows-the-probabilities-that-a-biased-dice-will-land-on-2,-on-3,-on-4,-on-5-and-on-6--Number-on-dice--|-1-|-2-|-3-|-4-|-5-|-6-|--Probability--|-0.17-|-0.18-|-0.09-|-0.15-|-0.1-|--Neymar-rolls-the-biased-dice-200-times--Work-out-an-estimate-for-the-total-number-of-times-the-dice-will-land-on-1-or-3.-Edexcel-GCSE Maths-Question 1-2017-Paper 2.png

The table shows the probabilities that a biased dice will land on 2, on 3, on 4, on 5 and on 6 Number on dice | 1 | 2 | 3 | 4 | 5 | 6 | Probability | 0.17 | 0.18... show full transcript

Worked Solution & Example Answer:The table shows the probabilities that a biased dice will land on 2, on 3, on 4, on 5 and on 6 Number on dice | 1 | 2 | 3 | 4 | 5 | 6 | Probability | 0.17 | 0.18 | 0.09 | 0.15 | 0.1 | Neymar rolls the biased dice 200 times Work out an estimate for the total number of times the dice will land on 1 or 3. - Edexcel - GCSE Maths - Question 1 - 2017 - Paper 2

Step 1

Calculate the Probability of Landing on 1 or 3

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Answer

The probability of landing on 1 or 3 can be found by adding their individual probabilities:

$P(1) + P(3) = 0.17 + 0.18 = 0.35$

Step 2

Estimate the Total Times for 1 or 3

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Answer

To find the estimated number of times the dice will land on 1 or 3 in 200 rolls, multiply the total rolls by the combined probability:

$ext{Estimated number} = 200 imes 0.35 = 70$

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