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Based on the results of the simulation, how likely is it to get at least tails in 40 flips of a fair coin? There is only a 4% chance of getting at least 26 tails in 40 flips of a fair coin. There is only a 1% chance of getting least 26 tails in 40 flips of a fair coin. a There is a 65% chance of getting at least 26 tails in 40 flips of a fair coin. There is a 50% chance of getting at least 26 tails in 40 flips of a fair coin.

Based on the results of the simulation, how likely is it to get at least tails in-example-1
User Jgibson
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1 Answer

16 votes
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Step 1: Find the proportion of 40 that is 26.

Let the proportion be x.

Then, we must have


x=(26)/(40)=0.65

Step 2: Find the probability of getting at least 26 tails in 40 flips of the fair coin

From the simulation, the proportions that are at least 0.65 are 4 in number


\begin{gathered} Pr(at\text{ least 0.65) }=\text{ Pr(0.65) + Pr(0.7)} \\ 1+3\text{ = 4} \end{gathered}

The total number of tails is 100.

Therefore,


(4)/(100)=4percent

The correct answer is this:

There is only a 4% chance of getting at least 26 tails in 40 flips of a fair coin

User Jlouro
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