Aleading magazine wants to conduct a survey on various issues related to women. for the survey, it decides to include appropriate numbers of women in terms of age, race and ethnicity, geography, income, and religious affiliation. which form of sampling is the magazine trying to incorporate in the survey?
a. biased sampling
b. genuine sampling
c. decisive sampling
d. model sampling
e. random sampling

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Sioux co. replaced the roof on its existing building, therefore increasing the building's life by 10 years. the cost of the roof is considered a(n):