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A bag contains 30 white balls and 10 red balls. 16 balls are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, the  is equal to :-
  • a)
    4
  • b)
  • c)
    4√3
  • d)
    3√2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A bag contains 30 white balls and 10 red balls. 16 balls are drawn one...
p (probability of getting white ball) = 30/40


 and standard diviation
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Community Answer
A bag contains 30 white balls and 10 red balls. 16 balls are drawn one...
No
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A bag contains 30 white balls and 10 red balls. 16 balls are drawn one by one randomly from the bag with replacement. If X be the number of white ballsdrawn, theis equalto :-a)4b)c)4√3d)3√2Correct answer is option 'C'. Can you explain this answer?
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