Advanced Placement (AP), 17.04.2020 00:01 hayleegahr
How has agriculture contributed to the decline of the Chang Jiang's water quality?
A Clearing land for farming has caused acid rain.
B. The fertilizers used by farmers contaminate the river.
C. Livestock drink from the river and spread their diseases.
D. Irrigation of farmland has reduced the water level in the river.
Answers: 2
Advanced Placement (AP), 23.06.2019 05:20
On a certain portion of an experiment, a statistical test result yielded a p-value of 0.18. what can you conclude? 2(0.18) = 0.36 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 18% of the time, so the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 82% of the time, so the test is not statistically significant. 0.18 > 0.05; the test is statistically significant. p = 1 - 0.18 = 0.82 > 0.05; the test is statistically significant.
Answers: 2
Advanced Placement (AP), 25.06.2019 03:30
Why is the road most slick when it first begins to rain? a. oils the road has absorbed begin to float. b. the water has not had time to run off. c. a higher concentration of dirt makes the road more slick. d. none of the above
Answers: 1
Advanced Placement (AP), 25.06.2019 06:00
Why is it essential to operationally define the variables in a study?
Answers: 1
How has agriculture contributed to the decline of the Chang Jiang's water quality?
A Cle...
A Cle...
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