NDA 2017 Paper 1 | Probability Question 50 | Mathematics

Consider the following statements :

1. Two events are mutually exclusive if the occurrence of one event prevents the occurrence of the other.

2. The probability of the union of two mutually exclusive events is the sum of their individual probabilities.

Which of the above statement is/are correct?

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

NDA 2017 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

If two fair dice are thrown, then what is the probability that the sum is neither 8 nor 9 ?

$${1 \over 6}$$

$${1 \over 4}$$

$${3 \over 4}$$

$${5 \over 6}$$

NDA 2017 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

Let A and B are two mutually exclusive events with $$P(A) = {1 \over 3}$$ and $$P(B) = {1 \over 4}$$. What is the value of $$P(\overline A \cap \overline B )$$ ?

$${1 \over 6}$$

$${1 \over 4}$$

$${1 \over 3}$$

$${5 \over {12}}$$

NDA 2017 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

The mean and standard deviation of a binomial distribution are 12 and 2 respectively. What is the number of trials ?

PREVIOUS NEXT

NDA Subjects

English

Reading Comprehension Synonyms Antonyms Cloze Rearranging Sentences in a Paragraph Idioms and Phrases Word Classes Sentence Completion Improvement of Sentence

General Science

Physics Chemistry Biology

General Studies

Polity Geography History Economy General Knowledge