Welcome to your Probability(Senior Class Maths Study by Topics) NAME EMAIL PHONE NUMBER 1. Of the 30 students in a class, 8 surnames begin with A or O and 18 begin with a consonant.No surname begins with any of the letters C,Q,U, V,X,Y and Z.The probability that a surname selected randomly begins with E or I is 2/15 3/5 13/15 4/15 2. The table below shows the result of tossing a fair dice 200 timesFind the value of x 34 12 2 30 3. Of the 30 students in a class, 8 surnames begin with A or O and 18 begin with a consonant. No surname begins with any of the letters C,Q,U, V,X,Y and Z.The probability that the surname of a student selected at random begins with a vowel is 2/5 4/13 4/15 2/15 4. A ball is selected and replaced in a bag containing blue, green and red identical balls. The results of 50 selections are shown belowColor of ball Blue Green RedNo. of occurrences 8 15 27The experimental probability of picking either a blue or a red ball is 0.30 0.16 0.70 0.54 5. Two dice, one red and the other blue are rolled together. Find the probability of getting a double 1/6 1/5 1/4 1/8 6. 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? 27/100 71/100 9/100 77/100 7. Two cards are drawn, one after the other, with replacement from a pack of 52 cards containing four aces and four queens. The probability that the cards are either both aces or both queens is 4/13 2/169 2/13 2/221 8. A bag contains 6 red balls, 12 white balls and 9 green balls. A ball is selected at random. What is the probability that it is not a green ball? 1/3 4/9 2/3 5/9 9. The probability of obtaining a prime number in a single toss of fair die is 1/4 1/6 1/2 1/3 10. 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 is 2/3 3/11 3/8 1/2 11. 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 absent from work on one particular day, the probability that he is a clerk is 4/25 3/25 1/25 2/25 12. The probability of obtaining a number less than 5 in a single toss of a fair die is 1/3 1/2 1/6 2/3 13. A number is selected randomly from the set of integers 1 to 20 inclusive. What is the probability that the number is either a multiple of 3 or a multiple of 5 9/20 11/20 3/10 1/2 14. A die is rolled 100 times with the following outcomes:Number 1 2 3 4 5 6Frequency 15 20 18 14 17 16The experimental probability of obtaining a 2 is 0.40 0.80 0.20 0.10 15. Two dice, one red and the other blue are rolled together. How many possible outcomes altogether 26 34 36 24 16. Cards are drawn from a pack of 52 playing cards one at a time. Calculate the probability of drawing without replacement at least one red card 31/102 1/102 17/102 77/102 17. A letter is chosen at random from the alphabet.Find the probability that it is one of the letters of the word INFORMATION 1/2 10/13 4/13 1/13 18. Two fair coins are tossed. The probability of getting at least one tail is 3/4 2/3 1/4 1/2 19. The probability of obtaining an odd number in a single toss of a fair die is 1/6 2/3 1/2 1/3 20. A bag contains 4 red, 8 green and 6 blue ball of identical size. The probability that a ball selected randomly is either red or green is 2/9 1/3 4/9 2/3 21. What is the probability of throwing a number greater than 2 with a single in a fair die 4/5 1/3 1/2 2/3 22. A number is selected randomly from the set of integers 1 to 20 inclusive. What is the probability that the number is equal to or greater than 15? 7/10 3/10 1/4 3/4 23. 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 yellow 16 15 14 11 24. A die is rolled 100 times with the following outcomes:Number 1 2 3 4 5 6Frequency 15 20 18 14 17 16The experimental probability of obtaining at most 4 is 0.84 0.47 0.14 0.67 25. A card is drawn from an ordinary pack of 52 playing cards. Find the probability that it is neither a seven nor a Diamond 1/52 4/13 9/13 3/52 1 out of 25 Time is Up! Time's up