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there are two bags one bag contains 10 red and 4 green balls and another bag contains 9 red balls and 5 green balls find the probability of selceting a red ball from first bag
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- Probability of selecting first bag = 1/2
probability of selceting a red ball from first bag = (1/2) *(10/14) = 5/14 - 12 years agoHelpfull: Yes(10) No(0)
- OUT OF TWO BAGS PROBABILITY FOR SELECTING FIRST BAG IS:1/2
NOW IN FIRST BAG WE HAVE TOTAL 14 BALLS (RED+GREEN)
AND OUT OF 14 10 ARE RED BALLS SO PROBABILITY OF SELECTING RED BALL FROM 14 BALL IS :10/14
HENCE PROBABILITY FOR RED BALL FROM 1ST BAG IS: 1/2*10/14=5/14. - 12 years agoHelpfull: Yes(5) No(1)
- (1/2)*(10C1/14C1)
- 12 years agoHelpfull: Yes(4) No(1)
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