Mathematics, 20.12.2020 01:00 mikkilynnpeace1982
5.36 Alkalinity of river water. The alkalinity level of water specimens collected from the Han River in Seoul, Korea, has a mean of 50 milligrams per liter and a standard deviation of 3.2 milligrams per liter. (Environmental Science & Engineering, Sept. 1, 2000.) Assume the distribution of alkalinity levels is approximately normal and find the probability that a water specimen collected from the river has an alkalinity level
a. exceeding 45 milligrams per liter.
b. below 55 milligrams per liter.
c. between 51 and 52 milligrams per liter
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 13:20
At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy
Answers: 2
Mathematics, 21.06.2019 17:00
The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?
Answers: 2
Mathematics, 21.06.2019 18:30
Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?
Answers: 1
Mathematics, 21.06.2019 22:10
What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²
Answers: 1
You know the right answer?
5.36 Alkalinity of river water. The alkalinity level of water specimens collected from the Han River...
Questions
Mathematics, 31.03.2020 02:00
Advanced Placement (AP), 31.03.2020 02:00
Mathematics, 31.03.2020 02:00
English, 31.03.2020 02:00
