Ch 1 - Statistics

parameter

A ____ is a numerical summary of a population.

statistic

A ____ is a numerical summary of a sample.

C

A sample of professors is selected and it is found that 45% own a vehicle. Choose the correct statement below. A) Parameter because the value is a numerical measurement describing a characteristic of a population B) Parameter because the value is a numerical measurement describing a characteristic of a sample C) Statistic because the value is a numerical measurement describing a characteristic of a sample D) Statistic because the value is a numerical measurement describing a characteristic of a population

c

Choose the correct answer below. A. Statistics is the science of​ manipulating, reorganizing, and editing information to produce the desired results. In​ addition, statistics is about providing the required answer with the desired level of confidence. B. Statistics encompasses all scientific disciplines in which random occurrences are analyzed. In​ addition, statistics references any random occurrence which is reported using percentages or proportions. C. Statistics is the science of​ collecting, organizing,​ summarizing, and analyzing information to draw a conclusion and answer questions. In​ addition, statistics is about providing a measure of confidence in any conclusions. D. Statistics encompasses all scientific disciplines in which percentages are​ used, data are​ analyzed, and probabilities are found. In​ addition, statistics references any mathematical model which is reported using percentages or proportions.

B

Determine whether the underlined numerical value is a parameter or a statistic. Explain your reasoning. In a certain soccer league comma Modifying 6 with underline of the 14 teams had won more games than they had lost.In a certain soccer league, 6 of the 14 teams had won more games than they had lost. Choose the correct answer below. A. Parameter​, because the data set of 6 teams in a league6 teams in a league is a population B. Parameter​, because the data set of all 14 teams all 14 teams is a population. C. Parameter​, because the data set of all 14 teamsall 14 teams is a sample. D. Parameter​, because the data set of 6 teams in a league6 teams in a league is a sample.

variables

___ are the characteristics of the individuals within the population.