section 1.5

Question 1

a hypothesis should be:

Answer 1

specific, testable, explanatory

Question 2

what is a variable?

Answer 2

something that changes in an experiment

Question 3

a variable that is manipulated on purpose

Answer 3

independent variable

Question 4

what is the difference between a control group and a controlled variable?

Answer 4

control groups stay constant throughout an experiment while controlled variables can be switched to the dependent variable

Question 5

what is one thing that is the same between independent and dependent variables

Answer 5

they can be quantified

Question 6

what is the point of a control group

Answer 6

gives data a starting point

Question 7

what is standard deviation

Answer 7

a statistic that measures the range of a set of data

Question 8

what is a variable

Answer 8

something that changes

Question 9

how do you read standard deviation

Answer 9

wider the spread, larger the range/ standard deviation

Question 10

what is the independant variable?

Answer 10

changed on purpose

Question 12

what is the dependent variable

Answer 12

changed as a result of independent variable

Question 13

explain what a hypothesis should include

Answer 13

it should be specific, testable, and explanatory