Statistic Quiz (Chapters 1 & 2)

Question 1

What is the definition of statistics according to Baldi & Moore and Agresti, Franklin, & Klingenberg?

Accepted Answer

The science of data

Question 2

What type of graph is this?

Accepted Answer

Left Skewed

Question 3

What is the distinguishing characteristic of Categorical Variables?

Accepted Answer

They do not allow arithmetic operations

Question 4

When is it better to use the Median instead of the Mean?

Accepted Answer

In skewed datasets

Question 5

What is the role of computers in statistics?

Accepted Answer

Perform statistical analysis, but may not guarantee valid results

Question 6

In which field would statistics be applied to prove a team's or player's performance?

Accepted Answer

Sports

Question 7

Which of the following is an application of statistics in Marketing?

Accepted Answer

Analyzing consumer preference and buying habits

Question 8

Being patient and practicing is the key to success in Statistics!

Accepted Answer

True

Question 9

Quantitative Variables & Categorical Variables are both numeric!

Accepted Answer

False

Question 10

What is the key distinction between Categorical and Quantitative Variables?

Accepted Answer

Categorical does not allow arithmetic operations; Quantitative allows

Question 11

. Which graph type is suitable for visualizing Quantitative Variables?

Accepted Answer

Both b and c

Question 12

How is statistics described in terms of data and uncertainty?

Accepted Answer

A way of thinking about data and quantifying certainty

Question 13

Why do we study statistics?

Accepted Answer

To answer questions and make better decisions

Question 14

What is part of Exploratory Data Analysis (EDA)?

Accepted Answer

Graphing relationships between variables

Question 15

What caution is given regarding the use of statistics?

Accepted Answer

Incorrect use can lead to poor decisions

Question 16

What does Descriptive Statistics do?

Accepted Answer

describes the group from which data was collected

Question 17

Attitude Doesn't Matter!

Accepted Answer

False

Question 18

What is the main purpose of Inferential Statistics?

Accepted Answer

Generalizing to a larger group than the data collected

Questions 18