Concept explainers
Videos
(a)
Interpretation:
Whether a beaker that weighs 6.6 g is a qualitative data or quantitative data needs to be determined.
Concept introduction:
Data is the collection of information obtained through observations about a person or a thing. Qualitative data is used for approximates and characterization. Quantitative data has numbers.
Answer to Problem 43A
A beaker that weighs 6.6 g is a quantitative data.
Explanation of Solution
Qualitative data is the measure of types and is mostly represented in the form of name, symbols or number codes. Whereas quantitative data is the measure of values or counts and is expressed in numbers. These are numeric variables representing the quantities as how many, how much or how often.
Thus, a beaker weighing 6.6 g is a quantitative data because it is data of the weight.
(b)
Interpretation:
Whether sugar crystals are white and shiny is a qualitative data or quantitative data needs to be determined.
Concept introduction:
Data is the collection of information obtained through observations about a person or a thing. Qualitative data is used for approximates and characterization. Quantitative data has numbers.
(b)
Answer to Problem 43A
Sugar crystals are white and shiny is a qualitative data.
Explanation of Solution
Qualitative data is the measure of types and is mostly represented in the form of name, symbols or number codes. Whereas quantitative data is the measure of values or counts and is expressed in numbers. These are numeric variables representing the quantities as how many, how much or how often.
Hence, sugar crystals are white and shiny is a qualitative data as it is depicting color of the sugar crystals.
(c)
Interpretation:
Whether fireworks are colorful is a qualitative data or quantitative data needs to be determined.
Concept introduction:
Data is the collection of information obtained through observations about a person or a thing. Qualitative data is used for approximates and characterization. Quantitative data has numbers.
(c)
Answer to Problem 43A
Fireworks are colorful is a qualitative data.
Explanation of Solution
Qualitative data is the measure of types and is mostly represented in the form of name, symbols or number codes. Whereas quantitative data is the measure of values or counts and is expressed in numbers. These are numeric variables representing the quantities as how many, how much or how often.
Hence, fireworks are colorful is the qualitative data.
Chapter 1 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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