基础统计学(英文版)(ppt 31页)

基础统计学(英文版)目录：
Chapter One
What is Statistics?
ONE
Understand why we study statistics.
TWO
Explain what is meant by descriptive statistics and inferential statistics.
THREE
Distinguish between a qualitative variable and a quantitative variable.
FOUR
Distinguish between a discrete variable and a continuous variable.
FIVE
Distinguish among the nominal, ordinal, interval, and ratio levels of measurement.
SIX
Define the terms mutually exclusive and exhaustive.

 

基础统计学(英文版)内容提要：
Numerical info is everywhere
But how do we know if conclusions reported are accurate?
Statistical techniques are used to make decisions that affect our lives
This is why younger people pay more for insurance…
Knowledge of statistical methods at least helps you understand why decisions are made
In future you will make decisions that involve data
 Descriptive Statistics: Methods of organizing, summarizing, and presenting data in an informative way.
EXAMPLE 1: A Gallup poll found that 49% of the people in a survey knew the name of the first book of the Bible. The statistic 49 describes the number out of every 100 persons who knew the answer.

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