Do you like statistics and maths? If so, please solve this? - XP Math - Forums

 XP Math - Forums Do you like statistics and maths? If so, please solve this?

 08-05-2007 #1 bichara51 Guest   Posts: n/a Do you like statistics and maths? If so, please solve this? Normal Distribution:The time needed for a warehouse operative to complete a particular warehouse operation is normally distributed with a mean of 80 mins and standard deviation of ten mins. Answer the following:a) what is the probability of an operative completing the warehouse task in one hour or less?b) what is the probability of an operative completing the task in more than 60 mins but less than 75mins.c) Assume that the number of staff on the shift is 60 and that the deadline for completion of each task is 90 mins. How many staff do you expect will be unable to complete the task in the allotted time? How's that then? Here's a very good book to help you if you need it:Business Statistics by Sonia Taylor
 08-05-2007 #2 CONCIETED CILLA Guest   Posts: n/a i don't know if i am righ buta)8/1b)1/4c)30if i am wrong tell me cos i ahven't done math in ages.

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