Topic

Probability

4 published practice questions

Public preview

Sample questions

Answers remain protected

Question 12021NAT
Three balls, colored in blue, green and red, are successively transferred from box A to box B in the order BLUE-GREEN-RED. The probability of a reverse transfer of the balls to the box A in the same order (rounded off to two decimal places) is ______.
Question 22022NAT
The probability density function of a random variable XX is p(x)=2e2xp(x)=2e^{-2x}. The probability P(1X2)P(1\le X\le2) (rounded off to two decimal places) is __________.
Question 32023NAT
Two fair six-sided dice are thrown. The probability of getting 12 as the product of the numbers on the dice (rounded off to two decimal places) is ____________.
Question 42023NAT
Ten playing cards numbered 1, 2, 3, …., 10 are placed face down on a table. One card is drawn at random, its number recorded, and then replaced face down. A card is drawn again at random. The probability that the number on the second draw is greater than the number on the first draw (rounded off to two decimal places) is ___________.