Update pages/5_Descriptive Statistics.py

pages/5_Descriptive Statistics.py

@@ -311,7 +311,8 @@ st.latex(r'''
 \text{Coefficient of Quartile Deviation} = (\frac{Q_3 - Q_1}{Q_3 + Q_1})*100''')
 
 st.subheader("Variance",divider="violet")
-multi = '''Variance is used for measuring the dispersion or spread.Average of spread or dispersion is known as variance.'''
+multi = '''Variance is used for measuring the dispersion or spread.Average of spread or dispersion is known as variance.
+-->to check the consistency of data co-efficient of variance is used'''
 st.markdown(multi)
 st.latex(r'''
 \sigma^2 = \frac{\sum (X_i - \mu)^2}{N}''')
@@ -347,9 +348,7 @@ multi = '''Variance can't be easily interpreted because we are doubling the devi
 
 --->**More the spread it means more the standard deviation**
 
---->**spread is directly proportional to the standard deviation**
-
---->to check the consistency of data co-efficient of variance is used'''
+--->**spread is directly proportional to the standard deviation**'''
 st.markdown(multi)
 st.latex(r'''
 \sigma = \sqrt{\frac{\sum (X_i - \mu)^2}{N}}''')
@@ -378,6 +377,12 @@ st.subheader("Sample standard deviation")
 st.latex(r'''
 s = \sqrt{\frac{\sum (X_i - \bar{X})^2}{n - 1}}''')
 
+st.latex(r'''
+\text{Population Coefficient of Standard Deviation} = \frac{\sigma}{\mu}''')
+
+st.latex(r'''
+\text{Sample Coefficient of Standard Deviation} = \frac{s}{\bar{X}}''')
+
 multi = '''--->σ is the population standard deviation
 
 --->s is the sample standard deviation
@@ -391,4 +396,5 @@ multi = '''--->σ is the population standard deviation
 --->N is the total number of data points in the population
 
 --->n is the number of data points in the sample.'''
-st.markdown(multi)
+st.markdown(multi)
+