Flip a fair two sided coin 4 times. Find the probability the first or last flip is a tail.

1/4

Step-by-step explanation:

Flip a fair two sided coin 4 times, the probability the first or last flip is a tail is

P = (1/2) x 1 x 1 x (1/2) = 1/4

(The probability of getting tail in first flip = 1/2, in the 2nd and 3rd flip, tail and head are both accepted, the probability of getting tail in last flip = 1/2)

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the answer is 5/14.

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answer: answer is b.

[m < b = 120º]

step-by-step explanation: