Advertisements
Advertisements
प्रश्न
A game of chance consists of spinning an arrow which is equally likely to come to rest
pointing to one of the number, 1, 2, 3, ..., 12 as shown in Fig. below. What is the
probability that it will point to an even number?
उत्तर
Total no. of possible outcomes = 12 {1, 2, 3,…., 12}
Let E ⟶ event of pointing at an even no.
No. favourable outcomes = 6 {2, 4, 6, 8, 10, 12}
P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`
P(E) =6/12 =1/2
APPEARS IN
संबंधित प्रश्न
Two customers are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another. What is the probability that both will visit the shop on different days?
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 a picture card (Jacks, queens and kings are picture cards)
From a well-shuffled deck of 52 playing-cards, one card is drawn. Find the probability that the card drawn will be a red 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 number divisible by 4.
In a game of chance, a spinning arrow comes to rest at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8. All these are equally likely outcomes. Find the probability that it will rest at a number less than 9.
Fill in the blank:
The sum of probabilities of all the outcomes of an experiment is ....... .
A letter is chosen at random from the letters of the word ASSOCIATION. Find the probability that the chosen letter is a vowel.
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
A game consists of spinning an arrow which comes to rest pointing at one of the regions (1, 2 or 3) (figure). Are the outcomes 1, 2 and 3 equally likely to occur? Give reasons.
Let E be an event such that P(not E) = `1/5`, then P(E) is equal to ______.
