CBSE Class 10 Maths Classical Approach to Probability
Q.
The probability may not be
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The probability of getting a face card from a deck of cards is
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The minimum number of favourable outcomes in an event is
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- what is probability of getting 1 head
- A bag contain number 3 to 102 cards. one card is drawn at a random. Find the probability that it is not a perfect cube number
- An integer is chosen at random between 1 and 100. Tell me , will the total events be 100 or 98? Because in the question "between" word is used,if the word "from" is used then total events will be100. Kindly tell me the no. of total events.
- From a pack of 52 playing cards – jacks, queens, kings and aces of red colour are removed. From the remaining, a card is drawn at random. Find the probability that the card drawn is (i) a black queen (ii) a red card (iii) a face card.
- What is the probability that a number selected from the numbers 1, 2, 3 ...15 is a multiple of 4?
- In a lottery there are 10 prizes and 25 blanks. What is the probability of getting a prize?
- Cards, marked with numbers 5 to 50, are placed in a box and mixed thoroughly. A card is drawn from the box the at random. Find the probability that the number on the card taken is (i) a prime number less than 10. (ii) a number which is perfect square.
- The probability of selecting a green marble at random from a jar that contains only green, white and yellow marbles is
The probability of selecting a white marble at random from the same jar is 
. If this jar contains 10 yellow marbles, what is the total number of marbles in the jar?
- A jar contains blue, green and white marbles. The probability of selecting a blue marble at random is , while the probability of selecting a green marble at random is
. If there are 54 marbles in the jar in all, how many white marbles are there in the jar?
- A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is thrice that of a red ball, find the number of blue balls in the bag.
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