GATE Questions & Answers of Definitions of probability

What is the Weightage of Definitions of probability in GATE Exam?

Total 3 Questions have been asked from Definitions of probability topic of Probability and Statistics subject in previous GATE papers. Average marks 1.33.

A fair (unbiased) coin was tossed four times in succession and resulted in the following outcomes: (i) Head, (ii) Head, (iii) Head, (iv) Head. The probability of obtaining a 'Tail' when the coin is tossed again is