Question

why is information obtained from samples used more often than information obtained from populations? choose all that apply. accuracy size of the population medical concerns (if collecting data involves a treatment) expense time reliability

Explanation:

• Size of the population: If a population is very large (e.g., all people in a country), it's impractical to collect data from every individual, so samples are used.
• Medical concerns: In medical research, applying a treatment to an entire population (e.g., a new drug) could be unethical or dangerous, so samples are used to test safety and efficacy.
• Expense: Collecting data from an entire population is often very costly (e.g., in terms of time, resources, and money). Sampling reduces these costs.
• Time: Gathering data from an entire population takes a lot of time. Sampling is faster, allowing for quicker analysis and results.

Accuracy and reliability are not reasons to use samples over populations—well - designed samples can be accurate and reliable, but the main drivers for using samples are the practical constraints of population size, medical ethics, cost, and time.

Answer:

• Size of the population
• Medical concerns (If collecting data involves a treatment)
• Expense
• Time