Advertisements
Advertisements
Question
Namita tossed a coin once. What is the probability of getting Head?
Solution
Sample space
S = {H, T}
n(S) = 2.
Event = {Head}
n(E) = 1
P(E) = `"n(E)"/"n(S)" = 1/2`.
APPEARS IN
RELATED QUESTIONS
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is either a black card or a king
Cards marked with numbers 1, 3, 5, ..., 101 are placed in a bag and mixed thoroughly. A card is drawn at random from the bag. Find the probability that the number on the drawn card is less than 19.
Tickets numbered 2, 3, 4, 5, ..., 100, 101 are placed in a box and mixed thoroughly. One ticket is drawn at random from the box. Find the probability that the number on the ticket is a number which is a perfect square.
A die is rolled twice. Find the probability that 5 will come up exactly one time.
A card is drawn from a pack of well - shuffled 52 playing cards . Find the probability that the card drawn is
(iii) a king
A die has 6 faces marked by the given numbers as shown below:
| 1 | 2 | 3 | – 1 | – 2 | – 3 |
The die is thrown once. What is the probability of getting an integer greater than – 3?
A die has 6 faces marked by the given numbers as shown below:
| 1 | 2 | 3 | – 1 | – 2 | – 3 |
The die is thrown once. What is the probability of getting the smallest integer?
The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well shuffled. Now one card is drawn at random from the remaining cards. Determine the probability that the card is a heart.
Two dice are rolled simultaneously. What is the probability that 6 will come up at least once?
A box contains 90 discs which are numbered 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a 2-digit number less than 40.
