Mathematics, 24.06.2019 22:50, liloleliahx2
Awater treatment plant needs to maintain the ph of the water in the reservoir at a certain level. to monitor this, they take 2 oz. of water at 37 locations every hour, measure the ph at each of those locations, and find their average. if the ph level of the reservoir is ok, the results at each location will have varying results, with an average ph of 8.5 and a standard deviation of 0.22. if the ph level of the reservoir is ok, what is the probability that the sample average is < 8.40?
Answers: 1
Mathematics, 21.06.2019 18:00, reinaelane77
Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?
Answers: 2
Mathematics, 21.06.2019 19:30, mariaaaaa69
Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28
Answers: 2
Mathematics, 22.06.2019 00:00, olgapagan1010
At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?
Answers: 1
Mathematics, 22.06.2019 03:30, emilylunaa
Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?
Answers: 3
Awater treatment plant needs to maintain the ph of the water in the reservoir at a certain level. to...