import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
%matplotlib inline
sales = pd.read_csv('sales_data.csv',parse_dates=['Date'])
sales.head() 1.Coustomers_Ages 的均值为多少?
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2.用Coustomers_Ages数据显示出density (KDE)和box plot?
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3.order_Quantity的均值是多少?
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4.用order_Quantity数据显示出直方图和box plot?
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