plz solve Questions no.17
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i)Chances of defective bulbs = 4
Total no. of chances = 20.
Probability = 4/20 =1/5
ii) One bulb is taken out & it is not defective. So no. of bulbs left are 19. Defective bulbs are 4. Not defective bulbs = 19 - 4 = 15.
Probability = 15/19
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Total no. of chances = 20.
Probability = 4/20 =1/5
ii) One bulb is taken out & it is not defective. So no. of bulbs left are 19. Defective bulbs are 4. Not defective bulbs = 19 - 4 = 15.
Probability = 15/19
Mark as brainliest if it is helpful
Alln:
and second(ii) part??
oh sorry did not see
now i am doing
i answered 2nd part also
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