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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

In a Single Throw of a Dice, Find the Probability of Getting a Number 6 - Mathematics

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प्रश्न

In a single throw of a dice, find the probability of getting a number 6

बेरीज

उत्तर

Event of getting number 6 = 1

Total number of outcome = 6

∴ P =`1/6`

shaalaa.com
Concept for Feel of Probability Using Data Through Experiments.
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पाठ 22: Probability - Exercise 22 (A)

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सेलिना Concise Mathematics [English] Class 7 ICSE
पाठ 22 Probability
Exercise 22 (A) | Q 9.2

संबंधित प्रश्‍न

A survey of 50 boys showed that 21 like tea while 29 dislike it. Out of these boys, one boy is chosen at random. What is the probability that the chosen boy
(i) likes tea
(ii) dislikes tea


In a cricket match, a batsman hits a boundary 12 times out of 80 balls he plays, further, if he plays one ball more, what will be the probability that:
(i) he hits a boundary
(ii) he does not hit a boundary


There are 8 marbles in a bag with numbers from 1 to 8 marked on each of them. What is the probability of drawing a marble with a number
(i) 3
(ii) 7


A bag contains 4 white and 6 black balls,- all of the same shape and same size. A ball is drawn from the bag without looking into the bag. Find the probability that the ball drawn is:
(i) a black ball
(ii) a white ball
(iii) not a black ball


Hundred identical cards are numbered from 1 to 100. The cards are well shuffled and then a card is drawn. Find the probability that the number on the card drawn is 50


Hundred identical cards are numbered from 1 to 100. The cards are well shuffled and then a card is drawn. Find the probability that the number on the card drawn is 40


Suppose S is the event that will happen tomorrow and P(S) = 0.03. Find P(S’)


Five Students A, B, C, D, and E are competing in a long-distance race. Each student’s probability of winning the race is given below:
A → 20%, B → 22%, C → 7%, D → 15% and E → 36%
(i) Who is most likely to win the race?
(ii) Who is least likely to win the race?
(iii) Find the sum of probabilities given.
(iv) Find the probability that either A or D will win the race.
(v) Let S be the event that B will win the race.
(a) Find P(S)
(b) State, in words, the complementary event S’.
(c) Find P(S’)


A Ticket is randomly selected from a basket containing 3 green, 4 yellow, and 5 blue tickets. Determine the probability of getting:
(i) a green ticket
(ii) a green or yellow ticket.
(iii) an orange ticket.


The following table shows number of males and number of females of a small locality in different age groups.

Age in years 10-20 21-50 Above 50
Male 8 12 6
female 6 10 4

If one of the persons, from this locality, is picked at random, what is the probability that

  1. the person picked is a male?
  2. the person picked is a female?
  3. the person picked is a female aged 21-50?
  4. the person is a male with age up to 50 years?

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