The average case of batteries has a maximum of 5% defect. From 100 cases, what is the probability that this number will not be met? Thanks in advance
2007-11-07 09:43:20 · 1 answers · asked by star_wisher86 1 in Science & Mathematics ➔ Mathematics
using the binomial law
2007-11-07 09:44:54 · update #1
Yes that is what I meant!! sorry...
2007-11-07 10:07:40 · update #2
a binomial has a fixed probability p for each battery. You say a maximum 5% defect, which means the probability of a battery being defective is itself varying. So this is not a binomial situation.
do you mean that a maximum of 5% defectives is acceptable? that's very different from what you asked.
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Ok, do you mean that within each case, it is acceptable for up to 5% of the batteries to be defective, or do you mean that up to 5% of the cases can be defective? If it's the former, we need to know the number of batteries in a case.
either way, we need to be given some binomial probability in order to do this problem. or we need to be given some data, for example "so many cases were inspected and so many were defective."
I'm sorry, but this is just very vague. I think the best person to ask is your teacher :)
2007-11-07 10:01:26 · answer #1 · answered by Michael M 7 · 0⤊ 0⤋