Ans. 0.3935; 0.2293; 0.3935
Each of 500 soldiers in an army company independently has a certain disease with probability 1/10[cubed]. This disease will show up in a blood test, and to facilitate matters blood samples from all 500 are pooled and tested.
Please answer and (c) and (d) only.
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Basic probability problems are solved. The solution is detailed and well presented.