Rose made 56 phone calls in 3 months. In the first month she made 24 calls, and in the second month she made 13 calls. How many
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Answer:
The required probability is
Step-by-step explanation:
The probability of obtaining a defective item from container 1 is
The probability of obtaining a good item from container 1 is
The probability of obtaining a defective item from container 2 is
The probability of obtaining a good item from container 2 is
The cases of the event are
1)Defective item is drawn from container 1 and good item is drawn from container 2
2)Defective item is drawn from container 2 and good item is drawn from container 1
Thus the required probability is the sum of above 2 cases