Probability that average life time of bar-s tv is less

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Reference no: EM13124566

A particular type of sony tv has a mean life time of 25 hours and a standard deviation 350 hours and the life time is normally distributed. suppose a bar buys 10 of these sony tvs what is the probability that the average life time of the bar's tv is less than 19,650 hours.

Reference no: EM13124566

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