In which of the following situations would a scientist use the correlation method?

To determine what the atmosphere was like 500 years ago

What do scientists use to organize data? Why?

Data tables and graphs because it makes it easier to see trends

The chance that something will happen

A testable idea based on prior knowledge

A statement about what would happen if a hypothesis is true.

Group that receives no independent variable (normal conditions)

Variable that the scientists changes (variable of interest)

A representation of something to help people better understand

The probability of an unwanted outcome

Variable that the scientists measures to see a result

Anything gathered from the senses

How can a scientist become more sure about the associations of a correlation method?

If the same associations appear over and over in different places

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Envir. Scie. Chapter 2 test review

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Answers

1
A method used when experiments cannot be done
Neither a or b
Both a and b
Correlation Method
Experimental method
2
Why do we have a control group?
to form a graph point
ensure only one thing changes at a time
to build a data base from
Point of comparison
3
In which of the following situations would a scientist use the correlation method?
To determine what the atmosphere was like 500 years ago
All of the above
To determine the most fuel efficient car
To determine what is killing mussels in the lake
4
What do scientists use to organize data? Why?
Data tables only because it makes it easier to see mistakes
Data tables and graphs because it makes it easier to see trends
Data tables and graphs because it makes it easier to see mistakes
Graphs only because it makes it easier to see trends.
5
Probability
A statement about what would happen if a hypothesis is true.
A testable idea based on prior knowledge.
The probability of an unwanted outcome
The chance that something will happen
6
Hypothesis
A testable idea based on prior knowledge
Group that receives no independent variable (normal conditions)
A representation of something to help people better understand
Anything gathered from the senses
7
Statistics
A statement about what would happen if a hypothesis is true.
Data in the form of numbers.
Variable that the scientists measures to see a result
Variable that the scientists changes (variable of interest)
8
Prediction
Data in the form of numbers.
A statement about what would happen if a hypothesis is true.
Variable that the scientists measures to see a result
Variable that the scientists changes (variable of interest)
9
A method when experiments are done
Neither a or b
Experimental method
Correlation Method
Both a and b
10
Control
Anything gathered from the senses
Group that receives no independent variable (normal conditions)
A representation of something to help people better understand
A testable idea based on prior knowledge
11
independent Variable
Variable that the scientists changes (variable of interest)
Variable that the scientists measures to see a result
Data in the form of numbers.
A statement about what would happen if a hypothesis is true.
12
Model
Anything gathered from the senses
Group that receives no independent variable (normal conditions)
A testable idea based on prior knowledge
A representation of something to help people better understand
13
Risk
A testable idea based on prior knowledge.
The probability of an unwanted outcome
A statement about what would happen if a hypothesis is true.
The chance that something will happen
14
Dependent Variable
Variable that the scientists measures to see a result
Data in the form of numbers.
A statement about what would happen if a hypothesis is true.
Variable that the scientists changes (variable of interest)
15
Which of the following is not a correct type of model?
Physical
Phycological
Mathmatical
Conceptual
16
How are results communicated?
Both
Conferences
Jouranals
Neither
17
Observation
A testable idea based on prior knowledge
Group that receives no independent variable (normal conditions)
A representation of something to help people better understand
Anything gathered from the senses
18
Major Characteristics of a scientist Include all these except:
Open
creative
All these are true
Honest
19
How can a scientist become more sure about the associations of a correlation method?
If the same associations appear over and over in different places
If different associations appear over and over in different places.
If the same associations appear over and over in the same place
If different associations appear over and over in the same place
20
How are statistics used?
Summarize data
Analyze data
All of the above
Compare data

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