1.3

Question 1

What is a hypothesis?

Answer 1

A testable statement that clearly states a prediction based on evidence

Question 2

What is a control group

Answer 2

The standard set of data to which comparisons are made to in an experiment

Question 3

What is the independent variable?

Answer 3

The variable that changes (x-axis)

Question 4

What is the variable that changes called?

Answer 4

The independent variable (x-axis)

Question 5

What is the dependent variable?

Answer 5

The outcome of the independent variable (y-axis)

Question 6

What is the outcome of the independent variable called?

Answer 6

The dependent variable (y-axis)

Question 7

What is the importance of a control group?

Answer 7

To eliminate other possibilities that could render the set of data inaccurate

Question 8

Suppose an experiment is made involving a bee in different environments.

Which of these groups would be the control group?

An area with heavy rainfall
An area with a temperate climate
A desert

Answer 8

An area with a temperate climate

Question 9

What is the use of error bars in a bar graph?

Answer 9

To show how the standard deviation of that group

Question 10

What do overlapping error bars tell us?

Answer 10

They tell us how significant the variance is.
Overlap = difference is not statistically significant
Less overlap = difference is probably not statistically significant
No overlap = difference may or may not be statistically significant (you cannot be sure)