Stats-01 Extra Activity 1
Basic meaning of statistics.
Statistics became a subject with several topics as people started to study it further.
Thus came the necessity to categorize it and giving birth to two branches of statistics namely Descriptive Statistics and Inferential Statistics.
Further the data was categorized on the basis of Structured (Organized Data) and Unstructured Data.
Further down the lane I learnt about Categorical data and Numerical data.
Tabular Format of structured data is most easily interpretable and easy.
In a Table the column headings represent Variables and their statistical data type we saw earlier. basically characteristic or attribute of an object or unit of study that can take on different values.
Similarly, Cases are individual unit or observation whose variables being measured.
Variables can take values categorized as Discrete and Continuous.
Categorization of Data on the basis of comparison of variable value
Nominal Scale Measurement
Ordinal Scale Measurement
Interval Scale Measurement
Ratio Scale Measurement
Frequency Table and creating it in Google sheets.
Relative Frequency and Plotting Table.
Creating charts of categorical data.
Graphs Can be misleading , how to avoid them and avoid misunderstanding.
kink on graph.
Managing and categorizing Numerical data.
Mean, Mode, Median these help understand the Data better.
Histogram
Stem Leaf Plot
Measures of Dispersion namely Range, Variance, standard deviation.
Percentile, Quartile, Interquartile.
Outliers and how they affect Measures of central tendency.
Box Plot Tutorial.
Association between two variables.
Contingency Table.
Relative Frequency table.
Stacked bar chart.
Covariance.
Correlation.
Point Biserial Coefficient.