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Question 17 of 25

What is the probability of flipping a coin 10 times and getting tails 8 times?
Round your answer to the nearest tenth of a percent.
O A. 4.4%
B. 1.0%
OC 20.5%
D. 11.7%

User Ecorvo
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1 Answer

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Final answer:

The probability of getting tails 8 times in 10 coin flips is approximately 4.4%.

Step-by-step explanation:

To calculate the probability of getting tails 8 times in 10 coin flips, we can use the binomial probability formula. The formula is:

P(X=k) = C(n, k) * p^k * (1-p)^(n-k)

Where n is the number of trials (10), k is the number of successes (8), p is the probability of getting tails (0.5), and C(n, k) is the number of combinations of n items taken k at a time.

Plugging in the values, we get:

P(X=8) = C(10, 8) * 0.5^8 * (1-0.5)^(10-8) = 45 * 0.00390625 * 0.25 = 0.0439453125

Multiplying by 100 to convert to a percentage, the probability of getting tails 8 times in 10 coin flips is approximately 4.4%.

User Frankenmint
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