Update app.py

app.py

@@ -9,5 +9,12 @@ st.write("Statistics is major backbone for the data analysis which is defined as
 st.write("It majorly collects the data and interprets the data then analyse the collected data and then structrize the analyzed data the whole process is known as statistics")
 st.header("Types of statistics")
 st.write("Based on the data the statitics are of two types")
-st.write("1.Descriptive Statistics"  "2.Inferential Statistics")
+st.write("1.Descriptive Statistics/n2.Inferential Statistics")
+st.subheader("What is descriptive statistics and its example")
+st.write("It describes the collected data and summarizes the data.Descriptive statistics majorly deals with sample data")
+st.write("Here the collected data can be sample data or either population data")
+st.subheader("*Sample data*")
+st.write("Sample data is subset of population data as we can't collect entire data for every analysis we collect only subpart of entire data")
+st.write("Ex: We want to collect the students or members who are taking the data science/ data analysis as domain in particular area is sample data")
+