WorksheetsGaston Seventh Grade Post
Total questions: 4
Worksheet time: 2mins
Which of the following best describes a population in a statistical study?
A group of randomly selected individuals from a city
All individuals or items of interest in a study
A small group chosen to represent a larger group
A group of students in a classroom
Which statement correctly differentiates between a sample and a population?
A sample includes every member of a group, while a population includes only a few members.
A sample is a subset of a population, while a population is the entire group being studied.
A sample and a population always have the same number of members.
A sample is always larger than a population.
A school principal wants to know the favorite lunch of all students in the school. Which of the following is a random sampling method?
Asking only the students in the first row of each classroom
Asking every third student on the school roster
Asking only the students who eat lunch in the cafeteria
Asking only the students in the principal’s class
A researcher surveys 50 randomly selected students from a school of 500 to estimate the average number of books read per month. Why is this random sample likely to produce a valid inference about the population?
Because it includes only students who like reading
Because random sampling reduces bias and tends to represent the whole population
Because it surveys all students in the school
Because it only includes students from one grade
