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.
You are older today than yesterday.
Tell whether the given is certain to happen, impossible, can happen but not certain.
The next traffic light seen will be green.
A box contains pairs of socks of two colours (black and white). I have picked out a white sock. I pick out one more with my eyes closed. What is the probability that it will make a pair?
The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow?
In a simultaneous throw of a pair of dice, find the probability of getting:
neither 9 nor 11 as the sum of the numbers on the faces
In a simultaneous throw of a pair of dice, find the probability of getting:
at least once
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
neither an ace nor a king
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a spade
Rohit collected the data regarding weights of students of his class and prepared the following table:
| Weight (in kg) | 44 – 47 | 48 – 51 | 52 – 55 | 56 – 60 |
| Number of Students | 3 | 5 | 25 | 7 |
A student is to be selected randomly from his class for some competition. The probability of selection of the student is highest whose weight is in the interval ______.
When a coin is tossed, there are 2 possible outcomes.
