28/03/2020 Probability(Senior Class Maths Study by Topics) 0Comments by Gate Academy Welcome to your Probability(Senior Class Maths Study by Topics) NAME EMAIL PHONE NUMBER 1. Two events M and N are mutually exclusive and P(M) = ¼ and P(N) = 2/3.P(M∪N) is1/211/1211/122. A coin and a dice are thrown together. Find the probability of getting a tail and a two1/41/61/121/23. A group of 40 adults read either newspapers or magazines. If 20 read newspapers and 35 read magazines, the probability that one of them reads both newspapers and magazines is2/33/81/23/114. The probabilities that a husband and his wife will be alive in 10 years time is 0.7 and 0.8 respectively.What is the probability that at that time both of them would be alive0.80.060.560.35. The probability that a number selected at random from 1 to 40 is a multiple of 7 is1/87/201/103/206. Three guests X, Y and Z arrive in that order for a dinner party. If guests are served randomly, the probability that the three guests will be served in the sequence of their arrival is1/32/31/61/27. Two fair dice are thrown together. The probability that the two dice will show the same number of points is1/61/361/31/28. The probability of obtaining an odd number in a single toss of a fair die is1/21/31/62/39. Two dice, one red and the other blue are rolled together. Find the probability of obtaining a total score divisible by 31/41/51/31/210. The chances of occurrence of three independent events X, Y and Z are 1/3, 1/4 and 2/5. What are the chances of occurrence of only Y and Z ?1/151/1013/301/3011. A box contains 5 blue balls, 3 black balls and 2 red balls of the same size. A ball is selected at random from the box and then replaced. A second ball is then selected. Find the probability of obtaining two red balls7/259/251/253/2512. A bag contains 6 red balls, 9 blue balls and 5 green balls. Two balls are chosen one after the other with replacement.What is the probability that both are red?71/10077/10027/1009/10013. A bag contains only Berries and Apples.The probability of picking a Berry at random is 0.3. Find the ratio of number of Berries to number of Apples that could be in the bag5:73:74:94:714. The data below shows the distribution of workers in a certain secondary school. Teacher 30 Gardeners 15Typists 9 Cleaners 6Clerks 12 Messengers 3If one of the workers is on leave, the probability that he is either a teacher or a gardener is3/53/251/52/515. A number is selected randomly from the set of integers 1 to 20 inclusive. The probability that the number is prime is2/57/209/201/216. A bag containing 5 red balls and 3 green balls. Two balls are picked, one after the other, with replacement. The probability that both are the same colour is25/6417/329/6415/6417. Two dice, one red and the other blue are rolled together. How many possible outcomes altogether2624343618. A bag contains only gala and royal apples. The probability of picking a gala at random is 0.3. Find the probability of picking a royal apple0.70.60.90.819. A box contains 5 blue balls, 3 black balls and 2 red balls of the same size. A ball is selected at random from the box and then replaced. A second ball is then selected. Find the probability of obtaining two blue balls or two black balls7/2320/2117/501/620. The probability of an event X is 2/3 and that of another event Y is 1/4. If the probability of either X or Y is1/311/123/4121. The table below shows the result of tossing a fair dice 200 timesFind the relative frequency of throwing a six1/104/254/271/522. A box contains yellow, blue and white counters. The probability of picking a yellow counter is 3/8 and the probability of picking a blue counter is 35%.If there are 40 counters in the box, find the number that is yellow1511141623. A photograph is to be taken of five people including a married couple. If the married couple insist on sitting next to each other, the number of different arrangements is6024481224. A university undergraduate has to take 5 courses from a pool of 4 Mathematics and 3 Physics courses.In how many ways can she select her courses so that she takes at least two courses in Physics?612187225. What is the probability of throwing a number greater than 2 with a single in a fair die4/51/31/22/326 out of 25Time is Up!