
Data Analysis and Visualization Concepts
Flashcard
•
Computers
•
University
•
Practice Problem
•
Hard
Derek Nicoll
FREE Resource
Student preview

47 questions
Show all answers
1.
FLASHCARD QUESTION
Front
R的用途是什么?
Back
R是一种强大的工具,用于数据分析和可视化,以发现洞察和趋势。
2.
FLASHCARD QUESTION
Front
R的一个例子是什么?
Back
一个超市连锁店可以使用R来分析销售数据,以了解哪些产品最受欢迎以及销售高峰期。
3.
FLASHCARD QUESTION
Front
EDA的用途是什么?
Back
EDA是数据分析的初始步骤,用于了解数据集的主要特征。
4.
FLASHCARD QUESTION
Front
数据清洗的定义是什么?
Back
数据清洗涉及修复错误、删除重复项和处理缺失数据,以确保数据的准确性。
5.
FLASHCARD QUESTION
Front
中心极限定理的用途是什么?
Back
中心极限定理指出,随着样本数量的增加,样本均值的抽样分布将趋近于正态分布。
6.
FLASHCARD QUESTION
Front
预测分析的定义是什么?
Back
预测分析利用历史数据来预测未来的结果。
7.
FLASHCARD QUESTION
Front
直方图的用途是什么?
Back
直方图以图形形式展示单一变量的分布。
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