Question

abigail wants to determine which time of day people prefer to exercise. she will collect three samples. which statements describe good methods for collecting the samples? select three options. go to the gym in the morning to survey the people entering because it is likely they will exercise. go to a local mall and survey people because a variety of people go to the mall. go to a grocery store and survey people because almost everyone shops for groceries. survey the students in third grade because little kids love to run around and play. survey people at different times of the day to ensure she reaches people on different schedules.

Explanation:

1. Surveying at a local mall targets a diverse cross-section of people with different exercise preferences and schedules, making the sample representative.
2. Surveying at a grocery store reaches a broad, general population since most people shop for groceries, avoiding bias toward a specific group.
3. Surveying at different times of day ensures the sample includes people with varying daily routines, which is critical for determining preferred exercise times across all schedules.

The other options are biased: surveying only morning gym-goers overrepresents morning exercisers, and surveying only third graders focuses on a narrow age group with limited exercise schedule diversity.

Answer:

B. Go to a local mall and survey people because a variety of people go to the mall.
C. Go to a grocery store and survey people because almost everyone shops for groceries.
E. Survey people at different times of the day to ensure she reaches people on different schedules.