Conservationists have despaired over destruction of tropical rain forest by logging, clearing, and burning." these words begin a report on a statistical study of the effects of logging in borneo. here are data on the number of tree species in 12 unlogged forest plots and 9 similar plots logged 8 years earlier:
col1 unlogged 2218 222015121 13 13 1913 19 15
col2 logged 17 4 181418151510 12 use the data to give a 90% confidence interval for the difference in mean number of species between unlogged and logged plots. compute degrees of freedom using the conservative methoo. interval:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

5.25 ounces

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divided 3/4 and 6

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options

the above table 1 will calculate the population size (n) after a certain length of time (t). all you need to do is plug in the initial population number (no), the growth rate (r) and the length of time (t). the constant (e) is already entered into the equation. it stands for the base of the natural logarithms (approximately 2.71828). growth rate (r) and time (t) must be expressed in the same unit of time, such as years, days, hours or minutes. for humans, population growth rate is based on one year. if a population of people grew from 1000 to 1040 in one year, then the percent increase or annual growth rate is 40/1000 x 100 = 4 percent.

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