मराठी

A student says that if you throw a die, it will show up 1 or not 1. Therefore, the probability of getting 1 and the probability of getting ‘not 1’ each is equal to 12. Is this correct? Give reasons. - Mathematics

Advertisements
Advertisements

प्रश्न

A student says that if you throw a die, it will show up 1 or not 1. Therefore, the probability of getting 1 and the probability of getting ‘not 1’ each is equal to `1/2`. Is this correct? Give reasons. 

बेरीज

उत्तर

No, this is not correct.

Suppose we throw a die, then total number of outcomes = 6

Possible outcomes = 1 or 2 or 3 or 4 or 5 or 6

∴ Probability of getting 1 = `1/6`

Now, probability of getting not 1 = 1 – Probability of getting 1

= `1 - 1/6`

= `5/6`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Statistics and Probability - Exercise 13.2 [पृष्ठ १६२]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics [English] Class 10
पाठ 13 Statistics and Probability
Exercise 13.2 | Q 9 | पृष्ठ १६२

संबंधित प्रश्‍न

A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability that the sum of the numbers appearing on the top of the dice is less than or equal to 12?


A bag contains 8 red, 6 white and 4 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is Neither white nor black


A box contains loo red cards, 200 yellow cards and 50 blue cards. If a card is drawn at random from the box, then find the probability that it will be a blue card


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.


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 number divisible by 4 or 5.


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 number divisible by 4 and 5.


Fill in the blank:

The sum of probabilities of all the outcomes of an experiment is ....... .


A die is rolled twice. Find the probability that 5 will come up exactly one time.


A letter is chosen at random from the letters of the word ASSOCIATION. Find the probability that the chosen letter is a consonant.


A card is drawn from a pack of well - shuffled 52 playing cards . Find the probability that the card drawn is 

(ii) a red card


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×