Question

Using key terms, create a scenario where you can find a population, a sample, the parameter, the statistic, a variable, and data. Post your scenario and provide a detailed description using the key terms. After reviewing the information, what did you learn about your target population?

Answer 1

Consider a school consisting of kids from class 1 to class 12. We are instersted in finding the distribution of the height of the students. So we collect the data from each students of every class.

data: the height of every student

population: every student

sample : we randomly take a portion of students from each class

variable: from the samples we have drawn, denote X_i as the sample drawn from the ith class, this is a variable

statistic: T= X bar, X bar denote the mean of the X_i, ii=1,2,...12

parameter: popuation mean, mean of all tge heights of the students, total height by total number of students