INTRODUCTION
TO STATISTICS
,STATISTICS
▪ The science of collecting, organizing, presenting, analyzing, and
interpreting data to assist in making more effective decisions
▪ Statistical analysis – used to manipulate summarize, and investigate
data, so that useful decision-making information results.
,WHY STUDY STATISTICS?
1. Data are everywhere
2. Statistical techniques are used to make many decisions that affect our
lives
3. No matter what your career, you will make professional decisions
that involve data. An understanding of statistical methods will help
you make these decisions effectively
, EXAMPLE
▪ When clinician records the result of a physical examination of a patient,
he is collecting data to aid the physician in diagnosing the type of illness
the patient has, and to determine the appropriate medical treatment that
must be prescribed to the patient.
▪ When teacher records the examination scores of the students in a
particular subject, he is recording data which he can use later to
determine if his method of teaching has been effective.
TO STATISTICS
,STATISTICS
▪ The science of collecting, organizing, presenting, analyzing, and
interpreting data to assist in making more effective decisions
▪ Statistical analysis – used to manipulate summarize, and investigate
data, so that useful decision-making information results.
,WHY STUDY STATISTICS?
1. Data are everywhere
2. Statistical techniques are used to make many decisions that affect our
lives
3. No matter what your career, you will make professional decisions
that involve data. An understanding of statistical methods will help
you make these decisions effectively
, EXAMPLE
▪ When clinician records the result of a physical examination of a patient,
he is collecting data to aid the physician in diagnosing the type of illness
the patient has, and to determine the appropriate medical treatment that
must be prescribed to the patient.
▪ When teacher records the examination scores of the students in a
particular subject, he is recording data which he can use later to
determine if his method of teaching has been effective.
