Engineering Sciences
GATE XE topic:probability-and-statistics PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–14 of 14. Imported answers require independent review unless marked reviewed.
Question 17
Open questionXE-CNAT2 marksNeeds review
Box-S has 2 white and 4 black balls and box-T has 5 white and 3 black balls. A ball is drawn at random from the box-S and put in box-T. Subsequently, the probability of drawing a white ball from box-T is _____. (round off to 2 decimal places)
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Open questionXE-ANAT1 markNeeds review
Raju has four fair coins and one fair dice. At first Raju tosses a coin. If the coin shows head then he rolls the dice and the number that dice shows is taken as his score. If the coin shows tail then he tosses three more coins and the total number of tails shown (including the first one) is taken as his score. If Raju tells that his score is 2 then the probability that he rolled the dice is (up to two decimal places) ______________
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Open questionXE-CMCQ1 markNeeds review
An atom is restricted to move in one dimension by making unit jumps either to the left or right, as shown in the figure. Assuming that a jump to the left or right is equally probable, the probability of the atom returning back to the start point after four jumps is
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Open questionXE-AMCQ1 markNeeds review
Three fair dice are rolled simultaneously. The probability of getting a sum of 5 is
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