Chemical Engineering
GATE CH topic:probability-and-statistics PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–15 of 15. Imported answers require independent review unless marked reviewed.
Question 35
Open questionCHNAT2 marksNeeds review
Two unbiased dice are thrown. Each dice can show any number between 1 and 6. The probability that the sum of the outcomes of the two dice is divisible by 4 is__________ (rounded off to two decimal places).
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Open questionCHMCQ1 markNeeds review
A watch uses two electronic circuits (ECs). Each EC has a failure probability of 0.1 in one year of operation. Both ECs are required for functioning of the watch. The probability of the watch functioning for one year without failure is
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Open questionCHMCQ1 markNeeds review
The marks obtained by a set of students are: 38, 84, 45, 70, 75, 60, 48. The mean and median marks, respectively, are
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Open questionCHNAT2 marksNeeds review
A box has 6 red balls and 4 white balls. A ball is picked at random and replaced in the box, after which a second ball is picked.
The probability of both the balls being red, rounded to 2 decimal places, is ________.
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Open questionGAMCQ1 markNeeds review
The following sequence of numbers is arranged in increasing order: 1, x, x, x, y, y, 9, 16, 18. Given that the mean and median are equal, and are also equal to twice the mode, the value of y is
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