puppydog4686 puppydog4686
  • 26-02-2021
  • Mathematics
contestada

Bob is doing a quality test on machine bolts. He tested 24 bolts that he randomly picked and found that 5 were defective. Based on Bob's results, what is the expected number of bolts that will be defective if he tests 840 bolts?
A.139
B.145
c.175
D.211

Respuesta :

sebasc104 sebasc104
  • 26-02-2021
C. 175
Explanation: 840/24 = 35 x 5 = 175
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