Question

It is known that a box of 550 bulbs contains 22 defective bulbs. One bulb is taken out at random from the box. Find the probability of getting: 1. Defective bulb. 2. Good bulb

Answer 1

THANKS FOR THE QUESTION !

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ANS :

1. ................... 1 / 25 ...................

2. .................. 24 / 25 ..................

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GIVEN :

=> TOTAL NO. OF BULBS IN THE BOX :

=> 550

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=> N ( S ) = 550

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NO. OF DEFECTIVE BULBS :

=> 22

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NO. OF GOOD BULBS :

=> TOTAL NO. OF BULBS - NO. OF DEFECTIVE BULBS

=> 550 - 22

=> 528

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EXPERIMENT :

=> 1 BULB IS TAKEN OUT RANDOMLY

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EVENT A :

=> PROBABILITY OF GETTING DEFECTIVE BULB :

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N ( A ) :

=> 22

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FORMULA :

=> P ( A ) :

=> N ( A ) / N ( S )

=> 22 / 550

=> 1 / 25

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EVENT B :

=> GETTING A GOOD BULB

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=> N ( B ) = 528

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FORMULA :

=> P ( B ) :

=> N ( B ) / N ( S )

=> 528 / 550

=> 24 / 25

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HOPE IT WILL HELP U MATE....

THANKS AGAIN.......

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Answer 2

Answer:

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