Mathematics, 13.02.2020 21:00 gugu1004
A dart is to be thrown at a target. The probability the dart will hit the target (yes or no) on a single attempt is 0.20. Each throw is independent of the other throws. Let X be the number of attempts before the target is hit.
a. What type of distribution does X follow?
b. Compute the expected number of attempts needed before hitting the target?
c. What is the variance and standard deviation of the number of attempts needed before hitting the target?
d. What is the probability that it will take less than 5 throws before hitting the target?
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