title: How can I multiply columns from different DataFrame? (python)
body: <p>I am trying to make new a DataFrame by myltiplying 'Wage' of df1 with respective value of df2 (male by male's value and female by female's value) of data2. I tried with grouping but I was unable to solve this.</p>
  <pre><code>import pandas as pd
  
  data1 = {'gender':['male', 'female', 'male', 'male'],
      'Age':[20, 20, 19, 19],
      'Wage': [1200, 1300, 1250, 1300]}
  
  data2 = {'male': [0.12],
       'female': [0.13]}
  
  df2 = pd.DataFrame(data2)
  
  
  df1 = pd.DataFrame(data1) 
  </code></pre>
  <p>I wanna built new_df as:</p>
  <pre><code>new_data = {'gender':['male', 'female', 'male', 'male'],
  'Age':[20, 20, 19, 19],
  'New_Wage':[1200*0.12, 1300*0.13, 1250*0.12, 1300*0.12]}
  df3 = pd.DataFrame(new_data)
  </code></pre>
  <p>Thank You !!</p>