Question

Leo wants to determine the average number of texts middle school students send in a day. Since all middle school students are enrolled in history, he randomly surveyed 4 students from each of Mr. Barnes’s eighth-grade history classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is representative of all middle school students? He should take the sample as is because he randomly surveyed students in each of Mr. Barnes’s classes. He should also take a sample from Ms. Lopez’s and Mrs. Frank’s classes so that each student has the same chance of being chosen. He should also take a sample from each of the other history classes in all of the other grades in the middle school. He should survey all the students in all the history classes to make sure he collects enough data.

Answer 1

Answer:

Survey is an important part of a research. Survey provides us information about the observations.

Answer 2

He should survey each of the other history classes since only one grade is being surveyed by this method.

Explanation:

• The survey examines the characteristics of an individual population by gathering data from the sample population & estimating their characteristics using statistical methodology systematically. Any activity collecting or acquiring statistical data is part of the term survey.
• A survey is used to gather knowledge & observations on different subjects of interest from a pre - defined group of respondents. They may have several objectives & researchers can do so depending on the chosen approach and the aim of the analysis.
• The characteristics of a large population are helpfully defined in surveys. This large power, ensuring a better sample to achieve precise results to draw hypotheses and make critical decisions can not also be supported by any other research process.

To know more

Write short notes on following methods of classification in statistical ...

https://brainly.in/question/1946182