Question

Answer the following questions with method.

2(A) Select and write the most appropriate alternative from those provided in the brackets:
The sun of the probabilities of all the elementary events of an experiment is ___ . [-1, 0, 1, infinite]

2(B) A lot of 30 books contain 6 defective books. If one book is drawn at random from the lot, find the probability of getting:
(i) A non defective book.
(ii) a defective book.​

Answer 1

Answer:

2(B)( i) 4/5

ii) 1/5

Step-by-step explanation:

(2B) i: 30-6= 24 non detective books.

So, 24/30 and simplify.

= 4/5.

ii) 6/30 detective books.

Simplify,

= 1/5 detective books.

Answer 2

Answer:

Q2.(A):- 1.

Q2.(B) (i):- 24/30 = 4/5.

(ii):- 6/60 = 1/5.

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