WORKSHEETS ON PROBABILITY GRADE 10

 

LESSON 15 - PROBABILITY

1. Two dice are thrown together. Find the probability that the product of the numbers on the top of the dice is          a) 6                   b) 12                c) 7

 2. Two different dice are thrown at the same time. Find the probability that the sum of the two numbers appearing On the top of the dice is 7.

 3. A pair of dice is tossed once, find the probability of getting a) a sum of 2   b) a total of 5  c) an even number as the sum.  d) Same number on each dice.

4. A die is thrown once. Find the probability of getting the following: a) a prime number.   b) a number lying between 2 and 5.

 5. A card is drawn at random from a well shuffled pack of playing cards. Find the probability of getting a red face card.

 6. One card is drawn from a well shuffled deck of 52 playing cards. Find the number of probability of getting a) A face card.  b) A black queen or a red king .   c) a king of red colour.    d) the jack of hearts   e) a spade.  f) either a king or a queen   g) neither a king nor a queen

 7. From a pack of 52 playing cards, Jacks, Queens, Kings and Aces of red colour are removed. From the remaining, A card is drawn at random. Find the probability that the card drawn is a) A black queen.  b) A non – face card.  c) A black jack     d) a Black King or a Red Queen

 8. A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is thrice that of red ball, find the number of blue balls in the bag.

9. A bag contains 6 red, 3 black and 6white balls. A ball is selected at random from the bag. Find the probability that the selected ball is  a)Red or black    b) not black .

 10. Cards marked with numbers 5,6,7,………………………..74 are placed in a bag and mixed thoroughly. One card is Drawn at random from the bag. Find the probability that the number on the card is a perfect square.

11. Cards numbered 2,3, 4, 5, 6, -------,49 are put in a box and mixed thoroughly. If one card is drawn at random Find the probability that the number on the card is a) Even number   b)prime number   c) Divisible by 6           d) A perfect square.

12. Two unbiased coins are tossed. Calculate the probability of getting a) Exactly two heads          

  b) At least two tails             c) At most two tails.

 13. A letter is chosen at random from the English alphabet. Find the probability that the letter chosen a) Is a vowel                    b) Is a consonant  

14. Find the probability of 53 Sundays in the year 2012.

15. Which of the following cannot be the probability of an event? a) 1/5  b) 0.3  c) 4%  d) 5/4

 16. A card is drawn from a pack of 52 playing cards. The probability of getting a face card is….

17. The probability of drawing a red queen from a well shuffled deck of 52 cards is………..

18. A die is thrown, the probability of getting a number less than 3 and greater than 2 is………..

 19. A card is drawn from a well – shuffled deck of 52 playing cards. The probability that it is not a face card is ………………………..

20. The probability of getting a perfect square number from the numbers 1 to 10 is…………………