Assume five coins are tossed, and we're trying to figure out how many tails will appear. Let's use the letter T to denote the number of tails that will emerge. Find the values of a random variable called T.
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The probability (P) can be gotten as follows:
[tex]P=\frac{number\text{ of favorable outcomes}}{total\text{ number of outcomes}}[/tex]Each coin has a 1/2 = 0.5 probability of getting a tail. Thus, to get the probability of the 5 coins is:
[tex]\frac{1}{2}\times\frac{1}{2}\times\frac{1}{2}\times\frac{1}{2}\times\frac{1}{2}=\frac{1}{32}=0.0313[/tex]Then the probability for a tail to emerge