everlastes
02-07-2012, 01:36 AM
the mean for comute time for a resident in a city is27.3 minutes . The standard deviation is 8.1 minutes.
1) minimum percent of commuters that have commute time within two standard deviaitons of the mean.?
2)minimum percent of commuters with time within 1.5 standard deviations
3) commute times within 1.5 deviaitons are between ___ and ___?
4) minimum pecent of commuterswho have comute time between 3 and 51.6 minutes?
I need to submit quiz soon ! i appreciate the help :) !
Rosetta Stone Portuguese (http://www.whererosettastone.com/rosetta-stone-portuguese-p-12.html)
http://www.whererosettastone.com/images/products/rosettastone/Rosetta-Stone-Portuguese.jpg
1) minimum percent of commuters that have commute time within two standard deviaitons of the mean.?
2)minimum percent of commuters with time within 1.5 standard deviations
3) commute times within 1.5 deviaitons are between ___ and ___?
4) minimum pecent of commuterswho have comute time between 3 and 51.6 minutes?
I need to submit quiz soon ! i appreciate the help :) !
Rosetta Stone Portuguese (http://www.whererosettastone.com/rosetta-stone-portuguese-p-12.html)
http://www.whererosettastone.com/images/products/rosettastone/Rosetta-Stone-Portuguese.jpg