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Probability

Multiple Choice Questions

101.
A coin is tossed 500 times with the following observations: Head: 245 times, Tail: 255 times The coin is tossed again. The probability of getting a Head is

0.502
0.50
0.51
0.51

0.51

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102. The probability of an event of a tail is:

P(E) = 0
P(E) = 1
0 ≥ P(E) > 1
0 ≥ P(E) > 1

88 Views

103.

In a cricket match, a batsman hits a boundary 8 times out of the balls he plays. Find the balls played if the probability of not hitting a boundary is 80%:

96 Views

104. The probability of guessing the correct answer to a certain question is

straight x over 2

If the probability of not guessing the correct answer to the question is

2 over 3 comma space

then x = .....

$4 over 3$
$3 over 4$
$2 over 3$
$2 over 3$

119 Views

105. A card is drawn from a well shuffled pack of cards. The chance of obtaining a face card is:

$2 over 13$
$1 over 36$
$3 over 13$
$3 over 13$

71 Views

106. Out of 25 students participating in a debate, 8 are girls. The probability that the winner is a boy is:

$8 over 25$
$8 over 33$
$17 over 33$
$17 over 33$

111 Views

107.

Marks obtained by 500 students in a test of 100 marks are tabulated as below:

Marks obtained	No. of students
0–25	58
25-50	122
50-75	165
75-100	155

If a student is selected at random, the probability that he obtains less than 50% marks is:

$69 over 100$
$9 over 25$
$33 over 100$
$33 over 100$

117 Views

108.

In a cricket match, a batsman hits a boundary on 4 balls that he faced. If he did not hit a boundary on the remaining 20 balls that he faced, then the probability of hitting boundary is: