Statistics is the process of data collection about organizing and presentation in a good manner.
Types of statistics
- Descriptive Statistics
- Inferential Statistics
Deals with data collection or organizing and presentation in a good manner.
Deals with prediction about future position after seeing sample.
Frequency means number of occurrence or times.
- Qualitative Data
- Quantitative data
- Continuous data
- discrete data
qualitative data is the data which can not be quantify by numubers.
for example: Good, bad, smart, beautiful
Quantitative data which can be quantify by numbers.
Example: Age, Salary, height, weight
which is not fix. such as: feet , weight
which is fix and accurate such as: salary
- Individual series
- discrete series
- Group series
Suppose there are eight students in one class student A got 70%, student B got 78%, student c 85%, student d 90%, student e 60%, student f 60%, student g 70%, student h 85%
requirement: make individual, discrete and group series separately from data.
|Groups by percentage||frequencies|
|60% to 70%||4|
|71% to 80%||1|
|81% to 90%||3|