1.When workers clean the place follows Normal distribution with mean of 150 mins and Standard Deviation of...
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1.When workers clean the place follows Normal distribution with mean of 150 mins and Standard Deviation of 3.2 minutes.
i. Find probability that it will be done cleaning in 158 minutes.
ii. 60% of the time, they can clean in less than M minutes, what is M?
iii. 10 people were randomly selected, find probability that the mean time to finish cleaning is less than 148 minutes.r
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