class 10th probability exercise 15.1 and 15.2 solution (home work for 1.04.2020)

Dear students as presentation of introduction of this chapter was already shared now solve the exercise and assignment in your note book
and if you have any doubt then you can post your doubt in  comment box  .

Click on this link to see the solutions of exercise 15.1 and 15.2 

 

https://www.youtube.com/watch?v=I6OMrX2U1eQ&list=PLZihDlFUnEcx9IcceSBTfx1rF0lvcWKoC



ASSIGNMENT  OF CH- 15

PROBABILITY

   1.    A die is thrown once. Find ( a) P( a number ≥ 3)     (b)  P ( a number < 7)

          (c) P(odd number)        (d) P(prime number)  (e) P( between 2 and 6)

  2. In a single throw of two dice what is the probability of getting

       (a) both odd numbers  (b) a total of 9 or 11     (c) same no. on both the dice( doublet)

       (d) the sum of nos. as whole no.   (e) the sum of nos. as prime nos.

       (f) prime as a whole    (g)  sum of nos. less than 9  (h) sum more than 9

       (i) number as a whole divisible by 2 and 3   (j) number as a whole divisible by 2 or 3

   3. One card is drawn from a well shuffled deck of 52 cards . Find the probability of

      Drawing:- (a) an ace                   (b) a jack                            (c) red face card

                        (d) black queen         (e) red card                         (f) 10 of black suit

                        (g) 7 of club              (h) a diamond face card      (i) non ace non face card

                        (j)  a heart                 (k)  non face card                (l)  a king or a queen

                        (m) neither king nor a queen                       (n) a card of spades or an ace

                        (o)  a face card          (p) neither a red face card nor queen

  4. The king , queen and jack of clubs are removed from a pack of 52 playing cards. The remaining         cards     are then well shuffled and one card is selected at random. Find the probability of getting

      (a) a heart     (b) a king   (c) a club  (d) the 10 of hearts

  5.   All the three face cards of spades are removed from a well shuffled pack of 52 cards

      A card is drawn at random from the remaining pack . find the probability of getting

      (a) a black face cards      (b) a queen      (c) a black card

  6.   Two unbiased coins are tossed. Find the probability of getting

     (a) exactly two head         (b) exactly one tail                      (c) at least two tails

     (d) at most two tails          (e) not less than one head( or at least one head)    (f) no tail

  7. Three coins are tossed simultaneously. Find the probability of getting

      (a) head and tail alternately     (b) at least two head               (c) at most one head

  8.  In a family, there are three children. Assuming that chances of a child being a male or

     a female are equal. Find the probability that (a) there is one girl in a family                   (b) there is no female child in the family (c) there is at least one male child in the family

9.  What is the probability of having 53 Tuesdays in a (a) non-leap year    (b) leap year?

10.  If the probability of winning the game is 5/11. What is the probability of losing?

11. Sativa and Hamid are friends . What is the probability that both will have

      (a) different birthday ?                   (b) the same birthday?

12. A box contains cards bearing numbers from 6 to 70. If one card is drawn at random

      from the box, Find the probability that it bears             (a) one digit numbers

      (b) no. divisible by 5                                                      (c) no. divisible by 3 and 5

      (d)  no. divisible by 3 or 5                                              (e) no. which is perfect square

13. A box contains 20 balls bearing numbers 1,2,3,4,…….20, A ball is drawn at random

      from the box. What is the probability that the no. on the ball is

      (a) an odd no.    (b) divisible by 2or 3   (c) prime no. (d) not divisible by 10?

14. A bag contains 5 white balls, 7 red balls, 4 black balls and 2 blue balls. One ball is

      Drawn at random from the bag. What is the probability that the ball drawn is

       (a) white or blue     (b) red or black        (c) not white         (d) neither white nor black

15. Two customers are visiting a particular shop in the same week( Monday to Saturday)

      Each is equally likely to visit the shop on any one day as on another. What is the

      probability that both will visit the shop on (i) the same day (ii) different days

      (iii) consecutive days

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