# CBSE Class 10 - Applications of Probability Videos

cards

This video covers an application on probability (cards)

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an integer is chosen at random from the first 50 positive integers . what is the probability that the chosen integer is divisible by 5
- Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls. Two balls are transferred at random from Bag I to Bag II and then a ball is drawn from Bag II. The ball so drawn is found to be red in color. Find the probability that the transferred balls were both black. Answer soon
- if x is the number of black marbles from a set of 40 colourful marbles, another 30 black marbles are added to it and the probability becomes twice as the first case , what is the value of x
- How many numbers are there BETWEEN 500 and 1000? (Needed for a probability question)
- 1.What is the probability that a leap year has 52 Mondays? 2.Two numbers 'a' and 'b' are selected successively without replacement in that order from integers 1 to 10.The probability that a\b is an integer is
- a mising helicopter is reported to have crashed in a rectangular region of 7000 sq km. what is the probability that it has crashed in a circular lake of radius 10 km
- A bag contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box the probability of drawing a black ball is now double of what it was before. Find x.
- what is the probability for a family with three children to have a boy and 2 girls (Assuming the probability of having a boy and a girl is equal)?? . . . Is the answer 1/3 and 2/3
- A die is thrown, find the probability of the event of getting a square number.
- A die is thrown once. Find the probability of getting (i) a prime number. (ii) a number divisible by 2