Advertisements
Advertisements
Question
A coin is tossed 100 times with the following frequency:
Head = 55, Tail = 45
find the probability of getting tail.
Solution
Event = {tail}
n(E) = 45
∴ Probability of event = `"n(E)"/"n(S)" = 45/100 = 9/20`.
APPEARS IN
RELATED QUESTIONS
The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow?
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is Not black
From a deck of 52 cards, all the face cards are removed and then the remaining cards are shuffled. Now one card is drawn from the remaining deck. Find the probability that the card drawn is a king of black color.
Seven cards:- the eight, the nine, the ten, jack, queen, king and ace of diamonds are well shuffled. One card is then picked up at random.
If the king is drawn and put aside, what is the probability that the second card picked up is:
- an ace?
- a king?
Find the probability that in a leap year there will be 53 Tuesdays ?
Two dice are thrown together. Find the probability that the product of the numbers on the top of the dice is 7
A coin is tossed two times. Find the probability of getting at most one head.
Following experiment have equally likely outcomes? Explain.
A baby is born. It is a boy or a girl.
Two dice are rolled simultaneously. What is the probability that 6 will come up at least once?
A bag contains 5 red balls and n green balls. If the probability of drawing a green ball is three times that of a red ball, then the value of n is ______.
