Define (a) data, (b) data set (c) observation, and (d) variable.

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Answer 1

Textbook Question

Chapter 2, Problem 1CR

Define (a) data, (b) data set (c) observation, and (d) variable.

a.

Expert Solution

To determine

Give the definition of data.

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

b.

Expert Solution

To determine

Give the definition of data set.

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

c.

Expert Solution

To determine

Give the definition of observation.

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

d.

Expert Solution

To determine

Give the definition of variable.

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

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Answer 2

Textbook Question

Chapter 2, Problem 1CR

Define (a) data, (b) data set (c) observation, and (d) variable.

a.

Expert Solution

To determine

Give the definition of data.

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

b.

Expert Solution

To determine

Give the definition of data set.

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

c.

Expert Solution

To determine

Give the definition of observation.

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

d.

Expert Solution

To determine

Give the definition of variable.

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

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Answer 3

Textbook Question

Chapter 2, Problem 1CR

Define (a) data, (b) data set (c) observation, and (d) variable.

a.

Expert Solution

To determine

Give the definition of data.

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

b.

Expert Solution

To determine

Give the definition of data set.

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

c.

Expert Solution

To determine

Give the definition of observation.

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

d.

Expert Solution

To determine

Give the definition of variable.

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

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Answer 4

Textbook Question

Chapter 2, Problem 1CR

Define (a) data, (b) data set (c) observation, and (d) variable.

a.

Expert Solution

To determine

Give the definition of data.

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

b.

Expert Solution

To determine

Give the definition of data set.

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

c.

Expert Solution

To determine

Give the definition of observation.

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

d.

Expert Solution

To determine

Give the definition of variable.

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

a.

Expert Solution

To determine

Give the definition of data.

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

b.

Expert Solution

To determine

Give the definition of data set.

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

c.

Expert Solution

To determine

Give the definition of observation.

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

d.

Expert Solution

To determine

Give the definition of variable.

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

Answer 8

a.

Expert Solution

To determine

Give the definition of data.

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

Answer 9

a.

Expert Solution

Answer 10

a.

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

Give the definition of data.

Answer 13

Explanation of Solution

Data:

Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.

Answer 14

b.

Expert Solution

To determine

Give the definition of data set.

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

Answer 15

b.

Expert Solution

Answer 16

b.

Expert Solution

Answer 17

Expert Solution

Answer 18

To determine

Give the definition of data set.

Answer 19

Explanation of Solution

Data set:

A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.

Answer 20

c.

Expert Solution

To determine

Give the definition of observation.

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

Answer 21

c.

Expert Solution

Answer 22

c.

Expert Solution

Answer 23

Expert Solution

Answer 24

To determine

Give the definition of observation.

Answer 25

Explanation of Solution

Observation:

An observation is defined as an entity in the collection of all items that are being studied by the investigator.

Answer 26

d.

Expert Solution

To determine

Give the definition of variable.

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

Answer 27

d.

Expert Solution

Answer 28

d.

Expert Solution

Answer 29

Expert Solution

Answer 30

To determine

Give the definition of variable.

Answer 31

Explanation of Solution

Variable:

A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.

Answer 32

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Define (a) data, (b) data set (c) observation, and (d) variable.

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