Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Probability

Short Answer Type

391. A die is rolled. If an even number shows up, another die is rolled. But if an odd number shows up, a coin is tossed. Write the sample space of the experiment.

{(2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (6,1), (6,2), (6,3), (6,4), (6,5), (6,6), 1H, 1T, 3H, 3T, 5H, 5T}

104 Views

392. A coin is tossed. If it results in a head, a die is thrown. If the die shows up an even number, the coin is tossed again. Write the sample space of the experiment.

97 Views

393. There are 3 red and 3 black balls in a box. A die is rolled and if it shows an even number, a ball is drawn from the box. Write the sample space S.

120 Views

394. There are two apples (A) and four oranges (O) in a box. A coin is tossed and if it is a head, one fruit is drawn from the box. Write die sample space S for the experiment.

93 Views

395. Suppose 3 bulbs are selected at random from a lot. Each bulb is tested and is classified as defective (D) or non-defective (N). Write the sample space of this experiment.

114 Views

396. A die is rolled. If it shows 1 or 2, a coin is tossed. Write the sample space for the experiment

93 Views

Long Answer Type

397. A die is thrown. Describe the following events:

(i) A : a number less than 7.

(ii) B : a number greater than 7.

(iii) C : an multiple of 3.

(iv) D : a number less-than 4.

(v) E : an even number greater than 4.

(vi) F : a number is not less than 3.

Also, find, A ∪ B, A ∩ B, B ∪ C, E ∩ F, D ∩ E, A - C, D - E, F', E ∩ F'

99 Views

Short Answer Type

398. A die is rolled. Let E be the event “die shows 4” and F be the event “die shows an even number”. Are E and F multually exclusive?

104 Views

Long Answer Type

399. Three coins are tossed once. Let A denote the event ‘three heads show’, B denote the event “two heads and one tail show”, C denote the event ‘three tails show and D denote event ‘a head shows on the first coin’, which events are: (i) multually exclusive? (ii) simple? (iii) compound?

79 Views

Short Answer Type

400. Three coins are tossed. Describe two events which are mutually exclusive.

120 Views