Advertisements
Advertisements
प्रश्न
Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of.
- Getting a number 6?
- Getting a number less than 6?
- Getting a number greater than 6?
- Getting a 1-digit number?
Advertisements
उत्तर
i) There are 10 slips in the box. However, 6 is written only on 1 slip.
Probability of getting a number 6 = `1/10`
ii) The numbers less than 6 are 1, 2, 3, 4, 5.
Probability of getting a number less than 6 = `5/10 = 1/2`
iii) The numbers greater than 6 are 7, 8, 9, 10.
Probability of getting a number greater than 6 = `4/10 = 2/5`
iv) There are 9 numbers which are single digit numbers.
1, 2, 3, 4, 5, 6, 7, 8, 9
Probability of getting a single digit number = `9/10`
APPEARS IN
संबंधित प्रश्न
Tell whether the given is certain to happen, impossible, can happen but not certain.
The next traffic light seen will be green.
In a simultaneous throw of a pair of dice, find the probability of getting:
8 as the sum
In a simultaneous throw of a pair of dice, find the probability of getting:
a sum less than 7
In a simultaneous throw of a pair of dice, find the probability of getting:
a sum more than 7
Three coins are tossed together. Find the probability of getting:
no tails
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a red card
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is:
not red?
What is the probability that a number selected from the numbers 1, 2, 3, ..., 15 is a multiple of 4?
If we have 15 boys and 5 girls in a class which carries a higher probability? Getting a copy belonging to a boy or a girl. Can you give it a value?
Classify the following events:
A ball thrown up in the air will fall down after some time.
