In an effort to learn more about the wild lemur population in Madagascar, a researcher wants to collect a sample. Which statement is true?
The researcher can assign each lemur a number and then use systematic sampling.
It is possible to collect a simple random sample of all wild lemurs in Madagascar
Sample bias is inevitable because the researcher can only collect a convenience sample.
To reduce time and cost, the researcher must collect a volunteer sample.

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Step-by-step explanation:

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- both graphs increase on their domain.

- the graphs of both functions have the same x-intercept.

- neither graph has a y-intercept.

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.