频率分布表与直方图：CEO薪酬

def solve():
    import pandas as pd
    import matplotlib.pyplot as plt
    url = '____'
    df = pd.read_csv(____)
    bins = pd.cut(____)
    freq = bins.value_counts().sort_index()
    print(pd.DataFrame({'____':freq, '____':(freq/len(____)).round(____)}))
    df['____'].hist(____)
    plt.xlabel(____)
    plt.title(____)
    plt.tight_layout()
    plt.show()