Which of the following cannot be the probability of an event?
Important Questions on Probability
The table below shows the value of probability when three identical coins are tossed. They are not matched correctly:
| Column-A | Column-B |
| i) Getting at most two heads | |
| ii) Getting at least two heads | |
| iii) Getting exactly one head | |
| iv) Getting neither all heads nor all tails | |
A dice is thrown at random. Find the probability of getting an odd number.
A pen is drawn at random from a mixture of defective pens and good pens. Determine the probability that the pen is taken out is a good one.
Write your answer upto three decimal places.
An octahedral die whose faces are numbered through (only one number on one face) is thrown three times. What is the probability that the product of the numbers obtained in first two throws is equal to the number obtained in the third throw?
One of the six letters is taken at random: SPACES
Write down the probability that the letter is S. (write the answer in fraction)
Rachita spins a spinner that is divided into equal sectors numbered to . Find the probability of spinning an odd number.
Rachita spins a spinner that is divided into equal sectors numbered to . Find the probability of spinning a composite number.
Josh and Soumik each take a coin at random out of their pockets and add the totals together to get an amount. Josh has two coins, a coin, a coin and three coins in his pocket. Soumik has three coins, a coin and three pieces. What is the probability that the coins will add up to ?
One of the six letters is taken at random: SPACES
The letter is replaced and again a letter is taken at random. This is repeated times. How many times would you expect the letter to be S?
Rachita spins a spinner that is divided into equal sectors numbered to . Find the probability of spinning the number
An organisation selected families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below:
| Monthly income (in ₹) |
Vehicles per family |
|||
| Above | ||||
| Less than | ||||
| or more | ||||
Suppose a family is chosen, find the probability that the family chosen is earning or more per month and owning exactly vehicle.
