A coin has a probability of p = 0.5 for getting a head in each toss. What is the expected number of trials to get the 3rd tail? What is the standard deviation of this probability distribution? What is the probability that you get the first tail within the 4th attempt?
A coin has a probability of p = 0.5 for getting a head in each toss. What is the expected number of trials to get the 3rd tail? What is the standard deviation of this probability distribution? What is the probability that you get the first tail within the 4th attempt?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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These are part of same problem. Please solve both properly. I dont need deatails. just make sure the right answer.. I just need the correct answer. You can use shorcuts but please give solve as fast as possible. I am running Out of time.
Transcribed Image Text:A coin has a probability of p = 0.5 for getting a head
in each toss.
What is the expected number of trials to get the 3rd
tail?
What is the standard deviation of this probability
distribution?
What is the probability that you get the first tail
within the 4th attempt?
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