Advertisements
Advertisements
Question
How many possibilities is following?
Any day of a week is to be selected randomly.
Solution
Total number of days in a week = Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday = 7.
APPEARS IN
RELATED QUESTIONS
In a simultaneous throw of a pair of dice, find the probability of getting a sum greater than 9
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is a black card
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a number divisible by 5.
Fill in blank:
Sum of the probabilities of each outcome m an experiment is ..........
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 5.
12 defective pens are accidently mixed with 132 good ones. It is not possible to just look at pen and tell whether or not it is defective. One pen is taken out at random from this lot. Find the probability that the pen taken out is good one.
If the probability of occurence of an event is p then the probability of non-happening of this event is (p − 1).
1000 tickets of a lottery were sold and there are 5 prizes on these tickets. If Namita has purchased one lottery ticket, what is the probability of winning a prize?
A dice is thrown once. What is the probability that the number is even?
Two dice are thrown simultaneously. Find the probability of getting: an even number as the sum.
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.
All the jacks, queens and kings are removed from a deck of 52 playing cards. The remaining cards are well shuffled and then one card is drawn at random. Giving ace a value 1 similar value for other cards, find the probability that the card has a value 7
All the jacks, queens and kings are removed from a deck of 52 playing cards. The remaining cards are well shuffled and then one card is drawn at random. Giving ace a value 1 similar value for other cards, find the probability that the card has a value greater than 7
The percentages of marks obtained by a student in six unit tests are given below:
| Unit test | 1 | 2 | 3 | 4 | 5 | 6 |
| Percentage of marks obtained |
53 | 72 | 95 | 46 | 67 | 59 |
A unit test is selected at random. What is the probability that the student gets more than 60% marks in the test?
Read the following passage:
|
"Eight Ball" is a game played on a pool table with 15 balls numbered 1 to 15 and a "cue ball" that is solid and white. Of the 15 numbered balls, eight are solid (non-white) coloured and numbered 1 to 8 and seven are striped balls numbered 9 to 15.
|
Based on the above information, answer the following questions:
- What is the probability that the drawn ball bears number 8?
- What is the probability that the drawn ball bears an even number?
OR
What is the probability that the drawn ball bears a number, which is a multiple of 3? - What is the probability that the drawn ball is a solid coloured and bears an even number?
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 ______.
A bag contains 30 discs numbered from 1 to 30. One disc is drawn at random from the bag. Find the probability that it bears a number divisible by 6.
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.
