Chapter 1: Basics Of Statistics

Question 1

The field of processing data to make useful inferences & descriptions about a population

Answer 1

Statistic

Question 2

Pieces of information

Answer 2

Data

Question 3

Subject

Answer 3

An individual who we gather data

Question 4

Variable

Answer 4

A characteristic of a subject on which we collect measurements

Question 5

Look at the market prices and square footage of 20 homes. What’s the subject/ s and what is the variable.

Answer 5

Prices and square footage are the variables
20 homes are the subjects

Question 6

Always have numeric responses & measure how much, how far, how long etc,

Answer 6

Quantitative Variables

Question 7

Set the subjects into different categories.

Answer 7

Categorial Variables

Question 8

How to solve for proportion?

Answer 8

Proportion = #in category/ # in sample population

Question 9

The overarching group about which we want to know something

Answer 9

Population

Question 10

Parameter

Answer 10

A summary of the population

Question 11

What percent of stat 2000 students transferred? Find population and parameters

Answer 11

Percent and transferred are parameters
Stat 2000 is the population

Question 12

Sample

Answer 12

A subject of the population from which we take measurements

Question 13

Statistics

Answer 13

A summary of the sample data

Question 14

A sample that includes entire population

Answer 14

Census

Question 15

What variable is generally described by proportions

Answer 15

Categorial variables

Question 16

What variable is generally described by means/ averages

Answer 16

Quantitative