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 18:30
Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)
Answers: 1
Mathematics, 22.06.2019 01:10
If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.
Answers: 2
A particular concentration of a chemical found in polluted water has been found to be lethal to 20%...
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