if a machine is correctly setup , it produces 90% acceptable items.If it is incorrectly setup , it produces only 40% acceptable items. Past experience shows that 80% of the setups are correctly done. If aftera certain set up , the machine produces 2 acceptable tems, find the probability that the machine is correctly setup.

Asked by prabhakar p | 14th Mar, 2013, 08:08: AM

Expert Answer:

Yups, we are talking about production of 2 acceptable items and since, the production of each of the acceptable items is independent from the previous one, we need to multiply their individual probabilities. And so, in both the cases p(A|B1) and p(A|B2), the individual probabilities are being multiplied. 

Answered by  | 14th Mar, 2013, 10:00: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.