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

431. A letter is chosen at random, from the word ‘ASSASSINATION’. Find the probability that letter is (i) a vowel (ii) a consonant

155 Views

432. There are 4 men and 6 women in the city council. If one council member is selected for a committee at random, how likely is that it is a woman?

113 Views

433. A coin is tossed twice, What is the probability that at least one tail occurs?

135 Views

434. A coin is tossed twice. What is the probability that One head and one tail occurs?

102 Views

435. A coin is tossed twice. What is the probability that no head occurs?

101 Views

436. Three coins are tossed once. Find the probability of getting 3 heads.

102 Views

437. Three coins are tossed once. Find the probability of getting 2 heads.

91 Views

438. Three coins are tossed once. Find the probability of getting atleast 2 heads.

112 Views

439. Three coins are tossed once. Find the probability of getting atmost 2 heads.

Three coins are tossed.
$rightwards double arrow$ Sample space, S = {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT}
$rightwards double arrow$ n(S) = 8
EventA: At most 2 heads are obtained.
$rightwards double arrow$ A = {HHT, HTH, THH, TTH, THT, HTT, TTT} $rightwards double arrow$ n(A) = 7

Hence, $straight P left parenthesis straight A right parenthesis space equals fraction numerator space straight n left parenthesis straight A right parenthesis over denominator straight n left parenthesis straight S right parenthesis end fraction equals 7 over 8$

114 Views

440. Three coins are tossed once. Find the probability of getting no head.

106 Views