Answer: 29
Step-by-step explanation:
Heer is the complete question:
A factory makes car batteries. The probability that a battery is defective is 1/14. If 400 batteries are tested, about how many are expected to be defective?
A) 14
B) 371
C) 29
D)35
Probability that a battery is defective = 1/14
Number of batteries tested= 400
Expected number of defective batteries= Probability that a battery is defective × Number of batteries tested
= 1/14 × 400
= 400/14
= 28.57
= 29 Approximately
