A) If four babies are born in a given hospital on the same day, what is...

A) If four babies are born in a given hospital on the same day, what is the probability that all four will be boys?
B) if four babies are born in a given hospital on the same day, what is the probability that 3 will be girls and 1 will be a boy?
C) You flip a coin twice what is the probability that it lands on heads once and tails one?

Solutions

Expert Solution

A) The probability of a baby being a boy = 1/2 = 0.5

Let be the event of baby being a boy.

Probability that all four babies will be boys = = = 0.0625

B) Let be the event of baby being a girl.

The probability of a baby being a girl = 1/2 = 0.5

Probability that 3 will be girls and 1 will be a boy = = = 0.25

C) The probability of getting head = Probaility of getting tail = 1/2 =0.5

Let be the event of toss being head.

Let be the event of toss being a tail.

Probability that it lands on heads once and tails once = = = 0.5

milcah answered 11 months ago

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