Question

1. taking a poll

• to be sure that a poll is accurate and representative of the general population ____, the following have to be done:

○ define the population ____ to be polled
○ construct a sample __.
■ ____ - chosen by chance
■ ____ - representative number from subgroups
○ prepare a valid __ - must be __, not endorse one side or another
○ decide how the question will be asked
○ report the ____

Explanation:

The problem is about the process of conducting a valid poll, which involves concepts like defining the population, constructing a sample (with random selection and representativeness), preparing a valid survey (unbiased), deciding on question asking, and reporting results. This relates to Statistics (a subfield of Mathematics) as it deals with sampling, population definition, and survey design for data collection and analysis.

Answer:

The subfield is Statistics (under Mathematics). The key steps for a valid poll: Define the population to be polled; Construct a random sample (chosen by chance, representative from subgroups); Prepare a valid survey (must be unbiased, not endorse one side); Decide how the question will be asked; Report the results.