The population P of birds in an area is modeled by the exponential model

P(t) = 30e-95t where t represents time in years.

Is the population of birds increasing or decreasing?

a. Increasing

b. Decreasing

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?