Mathematics, 24.05.2021 22:10, lilbit217
A new test is developed to test for organic matter in soil samples, giving "positive" or "negative" results to indicate that a sample does or does not contain organic matter.
For a soil sample that contains organic matter, the test will give a positive result 95% of the time and a negative result (false negative) 5% of the time. For a soil sample that does not contain organic matter, the test will give a positive result (false positive) 20% of the time and a negative result 80% of the time.
A study included a population of 1,000 soil samples, and 70% of those studied where known to contain organic matter.
Fill in the missing values in the table and statement below. If necessary, round the percentage to one decimal place.
Number of
Samples Positive
Result Negative
Result
Contains
Organic Matter 700 665
Does Not Contain
Organic Matter 300
240
If a soil sample test gives a positive result, it is
% likely that the soil sample contains organic matter.
Answers: 1
Mathematics, 21.06.2019 13:30, CameronVand21
The vertex of this parabola is at (-2, 5). which of the following could be itβs equation? a. y=3(x+2)^2-5 b. y=3(x-2)^2-5 c. y=3(x+2)^2+5 d. y=3(x-2)^2+5
Answers: 1
Mathematics, 21.06.2019 14:00, Badbpyz7987
(hurry! ) which expression is equivalent to the following complex fraction?
Answers: 1
Mathematics, 21.06.2019 21:00, blaqsafire404
Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?
Answers: 1
Mathematics, 21.06.2019 23:30, jadenweisman1
The approximate line of best fit for the given data points, y = β2x β 2, is shown on the graph. which is the residual value when x = β2? a)β2 b)β1 c)1 d)2
Answers: 2
A new test is developed to test for organic matter in soil samples, giving "positive" or "negative"...
Mathematics, 17.09.2020 04:01
German, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01
Mathematics, 17.09.2020 04:01