A fair coin is tossed 7 times. What is the probability that all tosses will be tails?

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☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

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(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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A fair coin is tossed 7 times. What is the probability that all tosses will be tails?

Solution

1128

Decimal

0.0078125

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Solution steps

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The possible outcomes when a coin is thrown 7 times are 2· 2· 2· 2· 2· 2· 2
Therefore, the number of possible outcomes: 2⁷

Find the number of favorable outcomes of all tosses will be tails: 1

Probability = number of favorable outcomestotal number of outcomes

=12⁷

2⁷=128

=1128

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A fair coin is tossed 7 times. What is the probability that all tosses will be tails?

Solution

Solution steps

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