题目内容

1-1.指出下面的变量哪一个属于分类变量( )

A. 年龄
B. 工资
C. 汽车产量
D. 购买商品时的支付方式(现金、信用卡、支票)

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第一章:统计数据可分为哪几种 类型?不同类型的数据各有什么特点?

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A. He got injured.
B. He lost the game.
C. The ball was broken.
D. He broke the window.

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A. You must drive a car in lower places.
B. The car must be driven slowly.
C. Don’t drive a car slowly on a winding path.
D. You cannot drive a car up the hills.

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A. Their boss is an excellent person.
B. He is actually not very outstanding.
C. He liked to praise others very much.
D. He was praised over and over.

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