For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring...

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For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring...

For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring survives)? Studies in Montana, Illinois, Wyoming, Utah, and California give the following percentages of successful nests (Reference: The Wildlife Society Press, Washington, D.C.).

x: Percentage success for mallard duck nests
77	38	29	29	80
y: Percentage success for Canada goose nests
39	69	45	33	60

(a) Use a calculator to verify that Σx = 253; Σx² = 15,455; Σy = 246; and Σy² = 12,996.

Σx		Σx²
Σy		Σy²

(b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for x, the percent of successful mallard nests. (Round your answers to two decimal places.)

x
s²
s

(c) Use the results of part (a) to compute the sample mean, variance, and standard deviation for y, the percent of successful Canada goose nests. (Round your answers to two decimal places.)

y
s²
s

(d) Use the results of parts (b) and (c) to compute the coefficient of variation for successful mallard nests and Canada goose nests. (Round your answers to one decimal place.)

	x	y
CV	%	%

For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring survives)? Studies in Montana, Illinois, Wyoming, Utah, and California give the following percentages of successful nests (Reference: The Wildlife Society Press, Washington, D.C.).

x: Percentage success for mallard duck nests
77	38	29	29	80
y: Percentage success for Canada goose nests
39	69	45	33	60

(a) Use a calculator to verify that Σx = 253; Σx² = 15,455; Σy = 246; and Σy² = 12,996.

Σx		Σx²
Σy		Σy²

(b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for x, the percent of successful mallard nests. (Round your answers to two decimal places.)

x
s²
s

(c) Use the results of part (a) to compute the sample mean, variance, and standard deviation for y, the percent of successful Canada goose nests. (Round your answers to two decimal places.)

y
s²
s

(d) Use the results of parts (b) and (c) to compute the coefficient of variation for successful mallard nests and Canada goose nests. (Round your answers to one decimal place.)

	x	y
CV	%	%

math Statistics-And-Probability

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