@@ -188,8 +188,29 @@ Here the samples are selected based on the availability. This method is used whe
188188Researchers prefer this during the initial stages of survey research, as it’s quick and easy to deliver results.
189189
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191- # 5. Descriptive Statistics
191+ # 5. Descriptive Statistics:
192+ Collecting, Summarizing or Describing and Processing data to transform data into information
192193
194+ Descriptive statistics are used to describe the basic features of the data in a study.
195+ * Descriptive statistics is a data analysis strategy.
196+ * It deals with the representation of numerical facts, or data, in either table or graphic form, and with the methodology of analysis the data.
197+ 198+ Example: A student’s grade point average (GPA), provides a good understanding in analysing his overall performance.
199+ 200+ 201+ ### Type of Descriptive Statstics:
202+ Descriptive statistics are broken down into two categories. Measures of central tendency and measures of spread (variability or dispersion).
203+ 204+ #### (1) Measure of Centre(Central Tendency)
205+ ##### (a) Mean
206+ ##### (b) Median
207+ ##### (c) Mode
208+ 209+ #### (2) Measure of Spread (Variability / Dispersion)
210+ ##### (a) Range
211+ ##### (b) Inter-Quartile Range
212+ ##### (c) Variance
213+ ##### (d) Standard Deviation
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194215# 6. Information Gain and Entropy
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