Question

In: Statistics and Probability

If a heads is flipped, then the coin is flipped 4 more times and the number...

If a heads is flipped, then the coin is flipped 4 more times and the number of heads flipped is noted; otherwise (i.e., a tails is flipped on the initial flip), then the coin is flipped 3 more times and the result of each flip (i.e., heads or tails) is noted successively. How many possible outcomes are in the sample space of this experiment?

Solutions

Expert Solution

case 1 : A coin is flipped once. The result is a head. The coin is flipped 4 more times.

number of possible outcomes in the sample space = 2*2*2*2 = 16

case 2 : A coin is flipped once. The result is a tail. The coin is flipped 3 more times.

number of possible outcomes in the sample space = 2*2*2 = 8

number of possible outcomes are in the sample space of this experiment = 16 + 8 = 24

if you count only distinct outcomes then

case 1 : A coin is flipped once. The result is a head. The coin is flipped 4 more times.

number of possible distinct outcomes in the sample space = 5 (Reason : Tossing a coin 4 times implies the number of heads can take only value 0,1,2,3,4.)

case 2 : A coin is flipped once. The result is a tail. The coin is flipped 3 more times.

number of possible outcomes in the sample space = 2*2*2 = 8

number of possible outcomes are in the sample space of this experiment = 5 + 8 = 13

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