A fair coin is tossed. How likely is it to land half heads, half tails if it is tossed 10 times? 20 times?

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A fair coin is tossed. How likely is it to land half heads, half tails if it is tossed 10 times? 20 times?

1 Answer

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Answer 1 · 2017-12-15T07:22:12

$The probability is 0.246 if it is tossed 10 times and 0.176 if it$ $"The probability is 0.246 if it is tossed 10 times and 0.176 if it"$ $is tossed 20 times.$ $"is tossed 20 times."$

Explanation:

$C (10, 5) {(\frac{1}{2})}^{10} = 0.246$ $C(10,5) (1/2)^10 = 0.246$
$and$ $and$
$C (20, 10) {(\frac{1}{2})}^{20} = 0.176$ $C(20,10) (1/2)^20 = 0.176$
$w i t h$ $with$
$C (n, k) = \frac{n!}{(n - k)! k!}$ $C(n,k) = (n!)/((n-k)!k!)$

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A fair coin is tossed. How likely is it to land half heads, half tails if it is tossed 10 times? 20 times?

1 Answer

Explanation:

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