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MCQs for topic: Probability

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1 Let us assume that a student is chosen from a random sample of 80 students, out of which 30 have opted for Maths, 20 opted for physics and 10 have opted for both Maths and Physics. Find the probability that the student has opted for either Maths or Physics.

Secondary Mathematics
Math
Probability
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2 Determine the probability of drawing either an ace or a heart from a standard deck of 52 cards:

Accounts Assistant LAHDC
Math
Probability
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3 Revised probability is also know as:

Accounts Assistant LAHDC
Math
Probability
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4 What is the probability of at least two heads on three tosses of a fair coin:

Accounts Assistant LAHDC
Math
Probability
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5 A single letter is selected at random from the word RELATION. What is the probability that it is a vowel?

JSA 2021
Statistics
Probability
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6 X and Y are independent events such that P (Y) = 0.3 and P (X∊Y) = 0.6, then what is the value of P (X)?

JSA 2021
Statistics
Probability
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7 A boy is known to speak truth 2 out of 3 times. He throws a dice and reports that it is a three. What is the probability that it is actually a three?

JSA 2021
Statistics
Probability
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8 A card is drawn at random from a pack of 52 cards. What is the probability that it is a club?

JSA 2021
Statistics
Probability
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9 Four balls are drawn at random from a bag containing 5 white and 4 black balls. What is the probability that 2 black and 2 white balls are drawn?

JSA 2021
Statistics
Probability
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10 If five coins are tossed together, then what is the probability of getting at least one head?

JSA 2021
Statistics
Probability
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Question ID: 3234