Suppose lifetime of certain type of car batteries are
normally distributed. Brand G has a mean...
Mathematics, 06.03.2020 23:07 leeplott4747
Suppose lifetime of certain type of car batteries are
normally distributed. Brand G has a mean lifetime of three years and
a standard deviation of one year. Brand M has a mean lifetime of 36
months and a standard deviation of four months.
(a) Which brand is more reliable and why?
(b) Pick one battery from each brand randomly, which one has a
better chance to last for four years and why?
Answers: 1
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