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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

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 - Mathematics

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प्रश्न

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

योग
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उत्तर

Here, the total number of cards = 100

card is drawn with number = 50

favourable outcomes = 1

Total number of outcomes = 100

∴ P =`1/100`

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

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सेलिना Concise Mathematics [English] Class 7 ICSE
अध्याय 22 Probability
Exercise 22 (A) | Q 10.1

संबंधित प्रश्न

A dice is thrown 20 times and the outcomes are noted as shown below:

Outcomes 1 2 3 4 5 6
No. of times 2 3 4 4 3 4

Now a dice is thrown at random, find the probability of getting:


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(i) likes tea
(ii) dislikes tea


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


Two coins are tossed simultaneously 100 times and the outcomes are as given below:

Outcomes Two heads
(H, H)
Exactly one head
(H T or T H)
No head
(T T)
No. of times 21 55 24

If the same pair of coins is tossed again at random, find the probability of getting:
(i) two heads
(ii) exactly one head
(iii) no head.


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


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(iii) an orange ticket.


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(i) 7
(ii) 9 or 10
(iii) a number greater than 4
(iv) a number less than 6


A box contains 3 yellow, 4 green, and 8 blue tickets. A ticket is chosen at random. Find the probability that the ticket is:
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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?
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