离散程度：方差标准差极差IQR

def solve():
    import pandas as pd
    import matplotlib.pyplot as plt
    url = 'https://data.zuihe.com/wooldridge/wage1.csv'
    df = pd.read_csv(url)
    s = df['wage']
    print(f'方差: {s.var():.3f}，标准差: {s.std():.3f}')
    print(f'极差: {s.max()-s.min():.3f}，IQR: {s.quantile(.75)-s.quantile(.25):.3f}')
    plt.boxplot(s, vert=False, widths=0.5, patch_artist=True, boxprops=dict(facecolor='steelblue'))
    plt.xlabel('工资'); plt.title('工资分布箱线图')
    plt.tight_layout(); plt.show()