Question

A box contains 100 bulbs of which 22 are defective. Find
the probability of getting a non-defective bulb (ii) a defective bulb​

Answer 1

Step-by-step explanation:

non defective=

88/100=44/50=22/25

defective=

22/100=11/100

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Answer 2

(I) total no. of bulbs = 100

no. of defective bulbs = 22

no. of non defective bulb = 100-22

=78

probability = no. of favourable outcomes /total no. of possible outcomes

=78/100

=39/50

(ii)total no. of bulbs = 100

no. of defective bulbs =22

probability = no. of favourable outcomes /total no. of possible outcomes

=22/100

=11/50