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a computer programmer has a 35 chance of finding a bug in any given program. what is the probability that she finds a bug within the first 3 programs she examines?
A) 0.15
B) 0.27
C) 0.59
D) 0.73

Respuesta :

Answer:

Answer is d

Step-by-step explanation:

  • A computer programmer  has a 35 change of finding a bug in any given program.
  • we have to find probability that she finds a bug within the first 3 programs she examines
  • success = 0.35, failure = 0.65
  • She get a bug in the first program itself
  • p = 0.35
  • She get a bug in 2nd program
  • q = 0.65×0.35 =0.2275
  • She get a bug in the 3rd program
  • r = 0.65×0.65×0.35
  • r = 0.147875
  • Add all the three probabilities for answer
  • P = p+q+r
  • P = 0.35+0.2275+0.147875
  • P = 0.725375
  • P = 0.73
  • The probability of the answer is 0.73

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