AihberKhan
  • AihberKhan
A new antibiotic is effective for 85% of infections. The antibiotic is given to 40 patients. a) What is the probability that the antibiotic will work in less than half of the patients?
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Half the patients is 20. So less than 20 is 19. Hence, here it describes \[P(X<20)=P(X≤19)\]
AihberKhan
  • AihberKhan
@Mehek14 Please Help!
AihberKhan
  • AihberKhan
Umm, that is not my problem. a) What is the probability that the antibiotic will work in less than half of the patients? That is my problem @Victoriasushchik

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Victoriasushchik
  • Victoriasushchik
ok sorrry!

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