input: Write a function titled `create_dashboard` that generates and displays a data visualization dashboard using Matplotlib in Python. The function should generate some data, create a figure, configure the plot with labels, and display it.
  
  assert create_dashboard() is None
output: def create_dashboard():
      import matplotlib.pyplot as plt
      import numpy as np
      
      data = np.random.randn(100)
      
      fig, ax = plt.subplots()
      ax.hist(data, bins=20)
      ax.set_title('Random Data Histogram')
      ax.set_xlabel('Value')
      ax.set_ylabel('Frequency')
      
      plt.show()