class 10th maths probabilitie chapter 20 objective questions
Answers
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(1) The probability of a leap year selected at random contain 53 Sunday is:
(a) 53/ 366(b) 1/7(c) 2/7(d) 53/365
(2) A bag contains 3 red and 2 blue marbles. A marble is drawn at random. The probability of drawing a black ball is :
(a) 3/5(b) 2/5(c) 0/5(d) 1/5
(3) The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow
(a) 0.25(b) 0.145(c) 3/20(d) none of these
(4) What is the probability that a number selected from the numbers (1, 2, 3,..........,15) is a multiple of 4?
(a) 1/5(b) 4/5(c) 2/15(d) 1/3
(5) What are the total outcomes when we throw three coins?
(a) 4(b) 5(c) 8(d) 7
(6) The probability that a prime number selected at random from the numbers (1,2,3, ..........35) is :
(a) 12/35(b) 11/35(c) 13/35(d) none of these
(7) The sum of the probability of an event and non event is :
(a) 2(b) 1(c) 0(d) none of these.
(8) The following probabilities are given; choose the correct answer for that which is not possible.
(a) 0.15(b) 2/7(c) 7/5(d) none of these.
(9) If three coins are tossed simultaneously, than the probability of getting at least two heads, is
(a) 1/4(b) 3/8(c) 1/2(d) 1/8
(10) A letter is chosen at random from the letters of the word �ASSASSINATION�. The probability that the letter chosen has:
(a) 6/13(b) 7/13(c) 1(d) none of these.