A biased coin is flipped. The probability of getting heads is 80%. A player wins $2 each time he gets tails, and a game involves
10 tosses. What is the expected value of the money earned in a game?
2 answers:
The probability of getting tail in one toss is 100% - 80% = 20%
In 10 tosses, the relative frequency to get tail is 0.2 × 10 = 2 times
Expected value of money earn = 2 × $2 = $4
Answer:
Expected value of the money earned in the game is:
$4
Step-by-step explanation:
In flipping a coin the probability of getting heads is 80%.
That means,The probability of getting tail is 100% - 80% = 20%
In 10 tosses, the number of times we will get tail is:
= 2 times
Hence, Expected value of money earned in the game = 2 × $2 = $4
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