Business Analytics Review 2

Business Analytics Review 2

Assessment

Flashcard

Business

University

Practice Problem

Easy

Created by

Derek Nicoll

Used 1+ times

FREE Resource

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30 questions

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1.

FLASHCARD QUESTION

Front

What is the main purpose of descriptive statistics?

Back

To summarize data using measures like mean and median

2.

FLASHCARD QUESTION

Front

What is the purpose of a box plot in EDA?

Back

To visualize the distribution and detect outliers in continuous data

3.

FLASHCARD QUESTION

Front

Which R function is used to calculate the mean of a numeric vector?

Back

mean()

4.

FLASHCARD QUESTION

Front

In probability, what does 'mutually exclusive' mean?

Back

Events that cannot occur at the same time

5.

FLASHCARD QUESTION

Front

Which statistical test would you use to determine if there is a significant association between two categorical variables?

Back

Chi-square test

6.

FLASHCARD QUESTION

Front

What does 'data imputation' involve in data cleaning?

Back

Replacing missing values with estimated values like mean or median

7.

FLASHCARD QUESTION

Front

Which R package is most commonly used for creating visualizations like scatter plots and bar charts?

Back

ggplot2

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