## NCERT Solutions for Class 10 Maths Chapter 15 Probability (Ex 15.1) Exercise 15.1

**Study without Internet (Offline)**

1. If P(E) = 0.01, what is the probability of ‘not E’?

As we know

P(E)+P(not E) = 1

It is given that, P(E) = 0.01

So, P(not E) = 1-P(E)

That is, P(not E) = 1-0.0

∴ P(not E) = 0.99

2. A box contains 5 red marbles, 8 white marbles, and 4 green marbles. One marble is removed from the box at random. What is the probability that the marble removed will be red?

The Total no. of balls = 5+8+4 = 17

P(E) = (Number of favorable outcomes/ Total number of outcomes)

So, Total number of red balls = 5

P (red ball) = 5/17 = 0.29

Thus, the probability of obtaining a red ball is 0.29.

3. How many questions are there in Exercise 15.2 Probability?

CBSE Class 10 Maths Chapter 15 is on the topic of Probability. It has many exercises that include questions from various sub-topics, and among them, Exercise 15.2 has about five questions in total. These questions are less in number and hence very important to know all of them properly. You must make sure to refer to the solutions to these questions from the Vedantu website or from the Vedantu app so that you do not miss the opportunity to score full marks in your exams. These solutions are available free of cost for the students.

4. How many questions are there in Probability Exercise 15.1 Class 10 Maths?

Exercise 15.1 from the Probability Chapter 15 is a long enough exercise consisting of 25 questions in total where the questions range from various topics from the area of probability. You have to solve all the 25 questions because the questions are different from each other which will help you cover a whole range of topics and help you understand the pattern of solving each individual question.

5. What is the 3rd question in Exercise 15.1 Probability?

Exercise 15.1 has various questions. The third question is about a situation that describes a football game, and the students need to understand the question properly and give the reason for tossing a coin regarding the game. This is an easy question and if you face difficulty in solving this question, then you can refer to the solution given in Vedantu where you will have no problem understanding the method for solving it.

6. What is the range of probability?

Probability is a branch of Mathematics where the tendency or chance of an event to occur is measured. So there is a range fixed for this tendency. It is said that the probability of an event to take place will range between 0 and 1, that is the probability will be between greater than or equals to 0 and less than or equals to 1. It shows that it is not Mathematically possible to have probability values less than 0 or more than 1.

7. Can I score full marks in Probability?

Yes, you can score full marks in Probability. It is an entire practice based area of Maths and you need to understand the pattern for solving the questions in the easiest and best possible method. This will help you gain confidence in yourself so that you don’t back out from attempting any question in your exam and eventually solve them accurately and score full marks. In this process, Vedantu can prove to be your best guide and take you towards success.