Question 1

Which of the following best describes a parameter in statistics?

Accepted Answer

A numerical measurement describing some characteristic of a population.

Question 2

A researcher calculates the average height of all students in a university. What type of measurement is this?

Accepted Answer

Parameter

Question 3

Which of the following is an example of categorical (qualitative) data?

Accepted Answer

The gender (male/female) of professional athletes.

Question 4

Which level of measurement is characterized by data that can be arranged in order, but differences between data values are not meaningful?

Accepted Answer

Ordinal

Question 5

A survey asks respondents to rate their agreement on a scale from 1 (strongly disagree) to 5 (strongly agree). What is the level of measurement?

Accepted Answer

Ordinal

Question 6

Which of the following is an example of discrete quantitative data?

Accepted Answer

The number of tosses of a coin before getting heads.

Question 7

Which of the following statements about interval level data is correct?

Accepted Answer

Differences between values are meaningful, but ratios are not.

Question 8

A researcher records the shirt numbers of soccer players. What type of data is this?

Accepted Answer

Categorical (nominal)

Question 9

Which of the following is a correct application of the ratio level of measurement?

Accepted Answer

Comparing the time (in minutes) it takes for students to complete a test.

Question 10

Which test can be used to distinguish between ratio and interval levels of measurement?

Accepted Answer

Ask if the use of the term 'twice' makes sense and if there is a true zero.

Question 11

Which of the following is an example of continuous quantitative data?

Accepted Answer

The lengths of distances from 0 cm to 12 cm.

Question 12

A data value is missing completely at random if:

Accepted Answer

The likelihood of its being missing is independent of its value or any other values in the data set.

Question 13

Which method involves substituting values for missing data?

Accepted Answer

Impute missing values

Question 14

Which of the following is NOT a characteristic of the nominal level of measurement?

Accepted Answer

Data can be arranged in order.

Question 15

Which of the following best describes big data?

Accepted Answer

Data sets so large and complex that analysis requires parallel computing.

Question 16

A survey records the eye color of students as brown, blue, or green. What is the level of measurement?

Accepted Answer

Nominal

Question 17

Which of the following is true about ratio level data?

Accepted Answer

Ratios and differences are both meaningful.

Question 18

A medical researcher records the body temperatures (in Celsius) of patients. What is the level of measurement?

Accepted Answer

Interval

Question 19

Which of the following is a correct example of a statistic?

Accepted Answer

The mean age of students in a particular class.

Question 20

A survey categorizes students as 1: Business, 2: Art, 3: Engineering. What is the level of measurement?

Accepted Answer

Nominal

Introduction to Statistics: Data Types and Levels of Measurement

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