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GATE 2019 Engineering Mathematics Quiz 9 (App update required to attempt this test)
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Question 1
Two coins are tossed simultaneously. The probability (upto two decimal points accuracy) of getting at least one head is _______
Question 2
The events A1 and A2 occur with probabilities 0.6 and 0.8 respectively. At least one of them occurs with a probability of 0.9. The probability that both A1 and A2 will occur is ____.
Question 3
The probability of obtaining at least two “SIX” in throwing a fair dice 4 times is
Question 4
A box contains 5 black and 5 red balls. Two balls are randomly picked one after another from the box, without replacement. The probability for both balls being red is
Question 5
Three companies, X, Y and Z supply computers to a university. The percentage of computers supplied by them and the probability of those being defective are tabulated below.
Given the computer is defective, the probability that it was supplied by Y is:
Given the computer is defective, the probability that it was supplied by Y is:
Question 6
There are 3 fair coins and 1 false coin with tails on both sides. A coin is chosen at random and tossed 4 times. If ‘tails’ occurs in all 4 times, then the probability that the false coin has been chosen for tossing is ___.
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Jun 19ESE & GATE CE