Advertisements
Advertisements
प्रश्न
A bag contains 100 identical marble stones which are numbered 1 to 100. If one stone is drawn at random from the bag, find the probability that it bears a perfect square number.
उत्तर
Total number of possible outcomes = 100
Numbers which are perfect squares = 1, 4, 9, 16, 25, 36, 49, 64, 81, 100
Number of favorable outcomes = 10
P(a perfect square) = `10/100 = 1/10`
APPEARS IN
संबंधित प्रश्न
Which of the following cannot be the probability of an event?
In a lottery there are 10 prizes and 25 blanks. What is the probability of getting a prize?
A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability? of obtaining a total of 6?
4 defective pens are accidentally mixed with 16 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is drawn at random from the lot. What is the probability that the pen is defective?
Six faces of a die are as shown below.
If the die is rolled once, find the probability of - ‘A’ appears on upper face.
If I toss a coin 3 times and get head each time, should I expect a tail to have a higher chance in the 4th toss? Give reason in support of your answer.
Two dice are thrown together. Find the probability that the product of the numbers on the top of the dice is 7
Cards with numbers 2 to 101 are placed in a box. A card is selected at random. Find the probability that the card has a square number
Two dice are rolled simultaneously. What is the probability that 6 will come up at least once?
For an event E, if `P(E) + P(barE)` = q, then the value of q2 − 4 is ______.