Basic Statistics

Statistics defined as singular term refers to..

• Science of designing studies ie. identify problem, gather data, summarize data, present data, analyze data and make a decision.

• Numerical facts or data

Why is statistical study important?

• To solve problem

• Help to investigate relationship between variables

• Help in making wise decision

• To provide solution/option for problem based on proper statistical study

A student measures the weight of every individual in his batch. This means that he will get...

• Sample

• Statistics

• Variable

• Parameter

What are the characteristics of a parameter?

• Population is complete

• Population is fixed

• Population is not fixed

• Population is not complete

The correct steps of statistical problem solving is...

• Identify problem > present data > gather data > analyze data > reach a decision

• Identify problem > gather data > present data > analyze data > reach a decision

• Identify problem > gather data > analyze data > present data > reach a decision

• Identify problem > present data > analyze data > gather data > reach a decision

Inferential vs descriptive statistics??

1) Making statements for the population based on samples

• Descriptive

• Inferential

Inferential vs descriptive statistics??

2) Stating a set of data's mean, median, mode, standard deviation and etc

• Descriptive

• Inferential

Inferential vs descriptive statistics??

3) Making generalization

• Descriptive

• Inferential

Inferential vs descriptive statistics??

4) Uses the data to provide descriptions of the population, either through numerical calculations or graphs or tables.

• Descriptive

• Inferential

Inferential vs descriptive statistics??

5) Draws educated conclusions about a population that is likely too large to sample completely

• Descriptive

• Inferential