A box contains 90 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears prime number less than 23 is
Total numbers of elementary events are: 90 Let E be the event of getting a prime number less than 23 Favourable numbers are: 2, 3, 5, 7, 11, 13, 17, 19 Numbers of favourable outcomes = 8 P (E) = 8/90 = 4/45 4/45
504 MCQ for effective preparation of the test of Probability of Mathematics section.
Read the MCQ statement: A box contains 90 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears prime number less than 23 is, keenly and apply the method you have learn through the video lessons for Probability to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 491-9223.