The probability of guessing correctly atleast 8 out of 10 answers on a true-false type…

Mathematics · JEE Main · NTA Exams — Statistics and Probability

1. \(\frac{7}{64}\)
2. \(\frac{7}{128}\)
3. \(\frac{45}{1024}\)
4. 

Answer

(B) 7 128

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• 6 ordinary dice are rolled. The probability that at least half of them will show at least 3 is
• If the mean deviation of numbers 1_ 1 1+d_ 1 1+2 d_ 1 .1+100 d from their mean is 255, then d is equal to
• Two events A and B have probabilities 0.25 and 0.50 respectively. The probability that both A and B occur…
• An unbiased coin is tossed. If the outcome is a head then a pair of unbiased dice is rolled and the sum of…
• If from each of the three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black…
• Five horses are in race. Mr. A selects two horses at random and bets on them. The probability that Mr. A…
• The probability that A speaks truth is 4/5, while this probability for B is 3/4. The probability that they…
• In a series of 2n observations half of them equal 'a' and remaining equal '-a'. if the standard deviation of…

More Statistics and Probability questions · Browse all practice questions