A fair coin is tossed repeatedly until it comes up heads for the second time. What is the probability that at least three tails come up before a head comes up for the second time?

Q: There are 4 red marbles, 1 white, and 3 black marbles in a box. You pick up randomly two marbles one…

A:

Q: Juan has a fair six-sided die, if Juan rolls the die twice in a row, what is the probability that…

A:

Q: While sitting on a park bench, Tanisha counts that 16 out of 20 people who walk by her have a pet…

A: The objective of this question is to find the probability of two mutually exclusive events: a person…

Q: What is the Probability a couple has two children at least one of them is a boy. Assume that the…

A: Given that, The boys and girls are equally likely. P(boy) = 0.5 P(girl) = 0.5

Q: Suppose a batsman can hit the ball 50% of the time. If the batsman is given 3 attempts at hitting…

A:

Q: What is the probability that team b wins the series ?

A: Given Data: P( A wins)=0.4 P( B wins)=0.6   Team A wins the first game

Q: You roll a fair eight sided die ten times. What is the probability that you roll a 1 exactly two…

A:

Q: Two dice are rolled simultaneously. What is the probability that the two scores are different?

A:

Q: If you throw a single die twice, what's the probability of first getting a 3 and then getting…

A:

Q: On average there are 3 leaks for every 100 miles of a pipeline. What is the probability that a…

A: On average there are 3 leaks for every 100 miles of a pipeline

Q: You flip a coin 5 times that has been weighted such that heads comes up twice as often as tails .…

A: The probability that all 5 of them are heads is obtianed below:   From the given information, let…

Q: flip a fair coin three times. What is the probability of getting one head and two tails, in any orde

A: Given that  A fair coin is flipped 3 times . Total possible events = 23 = 8 ways The ways are as…

Q: Suppose a batsman can hit the ball 50% of the time. Assume that the batsman has seen 6 balls and hit…

A:

Q: Suppose it has been observed that an average of six vehicles passes by their house per minute on…

A: Random variables are of 2 types, discrete and continuous. A discrete random variable can only take…

Q: Two coin are tossed. What is the probability of tossing “two heads or two tails”?

A:

Q: fair die is rolled two times. What is the probability that both rolls are 1?

A: Independent events When the happening of one event does not depend upon the other events. Then it is…

Q: A coin is tossed live times. What is the probability that there is at the least one tail?

A: From the provided information, A coin is tossed five times. Total outcomes = 25 = 32

Q: A fair 2-sided coin is tossed 3 times. What is the probability that the coin lands on tails once?

A: A fair 2- sided coin is tossed 3 times. then sample space(S); S={HHH,HHT,HTH,THH,TTH,THT,HTT,TTT}…

Q: Suppose you flip a fair coin twice. What is the probability that the outcome is the same both times?…

A: When we flip a coin toss twice then total number of possible outcomes are S = {HH, HT, TH, TT }

Q: A tennis player makes a successful first serve 30% of the time. If she serves 33 times, what is the…

A: Solution: Let X be the number of first serves and n be the number of times she serves. From the…

Q: A student is taking a true/false exam with 18 questions. If he guesses on each question, what is the…

A: Given Information 18 true/false question Probability of correct answering p = 0.5 N = 18 Let X be…

Q: You roll a fair six sided die 10 times. What is the probability that you rol a 1 exactly two times…

A: This is a problem of counting and it involves concept of probability.