Update app.py

app.py

@@ -254,3 +254,25 @@ st.subheader("Relative Range")
 st.latex(r'''
     \text{Relative Range} = \frac{\text{Absolute Range}}{\text{Mean}} \times 100
 ''')
+st.markdown(''':orange[**Quartile Deviation**] is one of the measure to find the disperssion.In this type the data is divided into 4 equal parts.
+It will mostly focus on the central data.
+''')
+st.subheader("Absolute Quartile Deviation")
+st.latex(r'''
+    QD = \frac{Q3 - Q1}{2}
+''')
+st.subheader("Relative Quartile Deviation")
+st.latex(r'''
+    \text{Relative QD} = \frac{Q3 - Q1}{Q3 + Q1} \times 100
+''')
+st.markdown(''':orange[**Varience**] is one of the measure to find the disperssion.It is one of the best measure to find the disperssion.The only
+drawback is when in Varience is in order to overcome negitive value we square them thus the distance is doubled
+''')
+st.subheader("Absolute Variance")
+st.latex(r'''
+    \text{Var} = \frac{1}{N} \sum_{i=1}^{N} (x_i - \bar{x})^2
+''')
+st.subheader("Relative Variance")
+st.latex(r'''
+    \text{Relative Var} = \frac{\text{Var}}{\bar{x}} \times 100
+''')