Question

4. It is known that a box of 50 electric bulbs contains 4 defective bulbs. One bulb is
taken out at random from the box. What is the probability that the bulb drawn is
(i) defective? (ii) non-defective?​

Answer 1

Answer:

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Step-by-step explanation:

Given:-

Total no. of electric bulbs =20

Number of defective bulbs=4

To find:- Probability (P) of getting a defective bulb, if one bulb is chosen randomly = ?

Solution:-

P=

Total number of bulbs

Number of defective bulbs

=

20

4

=

5

1

Hence, the correct answer is

5

1

(B).

Answer:- (B)

5

1