the probability that there is at least one error in account statement prepared by persons A,B,C are 0.2 ,0.3, and 0.1 .if A,B,C prepare correct state ment the expected no of correct state ment is ?
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Answered by
7
Step-by-step explanation:
Probability that A , B and C make no error is 0.8 , 0.7 and 0.1 .
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Answered by
12
Answer:
0.2×60=12
0.3×70=21
0.1×90=9
Total=42
60+70+90=220
now, 220-42= 178
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