Mathematics, 17.09.2019 05:30 lisagrimmett3
Statistics
a companys manufacturing process uses 500 gallons of water at a time. a "scrubbing" machine then removes most of a chemical pollutant before pumping the water into a nearby lake. to meet federal regulations the treated water must not contain more than 80 parts per million (ppm) of the chemical. because a fine is charged if regulations are not met, the company sets the machine to attain an average of 75 ppm in the treated water. the machine's output can be described by a normal model with standard deviation 4.2 ppm. what percent of the batches of water discharged exceed the 80 ppm standard?
a. 3.89%
b. 1.17%
c. 88.3%
d. 11.7%
e. 8.83%
and show how you get it
Answers: 1
Mathematics, 21.06.2019 15:30
Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?
Answers: 1
Mathematics, 21.06.2019 19:30
Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left
Answers: 1
Mathematics, 21.06.2019 22:50
Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?
Answers: 2
Statistics
a companys manufacturing process uses 500 gallons of water at a time. a "scrubbin...
a companys manufacturing process uses 500 gallons of water at a time. a "scrubbin...
English, 22.12.2019 23:31
Mathematics, 22.12.2019 23:31
Biology, 22.12.2019 23:31
Mathematics, 22.12.2019 23:31
Social Studies, 22.12.2019 23:31
Chemistry, 22.12.2019 23:31
English, 22.12.2019 23:31
Mathematics, 22.12.2019 23:31
Physics, 22.12.2019 23:31
Chemistry, 22.12.2019 23:31
Mathematics, 22.12.2019 23:31
Chemistry, 22.12.2019 23:31