Calculate the Probability for a Silver Dollar Flipped Twice
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A silver dollar is flipped twice. Calculate the probability of each of the following occurring:
a. a head on the first flip
b. a tail on the second flip given that the first toss was a head
c. two tails
d. a tail on the first and a head on the second
e. a tail on the first and a head on the second or a head on the first and a tail on the second
f. at least one head on the two flips
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Solution Summary
This solution provides formula and calculations for the probability of the occurrence of the different events in the attached Word and, identically, the attached PDF. All calculations are explained to help the student understand the process.
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Note that in question b total number of cases is 2. Actually this is a question of conditional probability.
According the classical definition, probability of occurrence of an event A of a random experiment is defined as
Answers:
When a silver coin is flipped twice the set of all possible outcomes is given by
{(H,H), (H,T),(T,H), (T,T)}. Hence total number of cases is 4
a) Let A denotes the event of getting a head on the ...
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