Mathematics, 18.02.2020 00:01 mamatonya5p5jl11
A particular concentration of a chemical found in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. Twenty fish are placed in a tank containing this concentration of chemical in water. a) Find the probability that exactly 14 survive. b) Find the probability that at least 10 survive. c) Find the probability that at most 16 survive. d) Find the mean and variance of the number that survive.
Answers: 2
Mathematics, 21.06.2019 16:20
Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function
Answers: 2
Mathematics, 21.06.2019 20:30
2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.
Answers: 1
Mathematics, 21.06.2019 21:30
Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?
Answers: 3
Mathematics, 22.06.2019 01:10
Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?
Answers: 2
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