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# Which of the following cannot be the probability of an event?

(A) 2/3 (B) –1.5 (C) 15% (D) 0.7

**Solution:**

We will use the basic concepts of probability in order to answer the given question.

We know that the probability of an event E lies in between 0 and 1, that is, 0 ≤ P(E) ≤ 1 and it cannot be less than 0 and greater than 1.

So, option (B) - 1.5 cannot be the probability of an event because it is negative.

**☛ Check: **NCERT Solutions for Class 10 Maths Chapter 15

**Video Solution:**

## Which of the following cannot be the probability of an event? (A) 2/3 (B) –1.5 (C) 15% (D) 0.7

NCERT Solutions for Class 10 Maths Chapter 15 Exercise 15.1 Question 4

**Summary:**

Option (B) -1.5 cannot be the probability of an event because it is a negative value.

**☛ Related Questions:**

- If P(E) = 0.05, what is the probability of ‘not E’?
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