Michelle is interested in knowing how often girls in her class at school use their cell phones to instant message their friends.
Which of the following methods could Michelle use to conduct a simple random sample to answer her question?
A. Give the survey to the first fifty girls on a list of all the students in her class.
B. Post her survey on the Internet and ask only girls to respond.
C. Write the name of each girl in her class on a card and then draw 10 cards from a hat.
D. Identify which homeroom each girl in her class is in and then choosing a sample from each homeroom based on the number of girls in the homeroom.
I like D. It gives her a larger sampling.
I think its either C or D
Thank you, Ms. Sue!
You're welcome, Sophia.
To conduct a simple random sample to answer her question, Michelle could use option C: Write the name of each girl in her class on a card and then draw 10 cards from a hat.
This method ensures that each girl in the class has an equal chance of being selected for the survey. By writing each name on a card and randomly drawing 10 cards from a hat, Michelle eliminates bias and ensures a fair representation of the entire class. This approach is based on the principle of random selection, where every individual in the population has an equal probability of being chosen.