A fair coin is tossed seven times. What is the probability of obtaining five tails?
Solution: Given that n = 7, p = 1/2 = 0.5 , X = 5
P(X = 5) = 7C5*0.5^5*0.5^2 = 0.1641
A fair coin is tossed seven times. What is the probability of obtaining five tails?
A fair coin is tossed 10 times. Part A. What is the probability of obtaining exactly 5 heads and 5 tails? Part B. What is the probability of obtaining between 4 and 6 heads, inclusive?
13. A fair coin is tossed eight times. Calculate (a) (b) (c) the probability of obtaining exactly 4 heads; the probability of obtaining exactly 3 heads; the probability of obtaining 3, 4 or 5 heads.
A fair coin is tossed eight times. Calculate (e) the probability of obtaining exaectly 4 heads (b) the probability of obtaining exactly 3 heads (c) the probability of obtaining 3, 4 or 5 heads.
A fair coin is tossed 6 times. A) What is the probability of tossing a tail on the 6th toss given the preceding 5 tosses were heads? B) What is the probability of getting either 6 heads or 6 tails?
Problem 13. A fair coin is tossed 10000 times. Find the probability that the number of tails is more or equal to 5050.
A coin is tossed 5 times. What is the probability that the number of tails obtained will be 1? Express your answer as a fraction or a decimal number rounded to four decimal places.
A coin is tossed 7 times. What is the probability that the number of tails obtained will be between 1 and 3 inclusive? Express your answer as a fraction or a decimal number rounded to four decimal places.
A fair coin is tossed 9 times.(A) What is the probability of tossing a tail on the 9th toss, given that the preceding 8 tosses were heads?(B) What is the probability of getting either 9 heads or 9 tails?(A) What is the probability of tossing a tail on the 9th toss, given that the preceding 8 tosses were heads?(B) What is the probability of getting either 9 heads or 9 tails?
A coin is tossed 23 times, and the sequence of heads and tails is the outcome. A statistical test is conducted for the following hypotheses. H,: The coin is a fair coin. H,: The chance of obtaining a head is three time as the chance of obtaining a tail. The critical region for the test is the event “more than k heads”. Here k is a positive integer. If we want the power of the test to be at least...
(a) A fair coin is tossed 6 times. What is the probability that it will land on heads exactly 3 times?