Unit 9 Data Analysis

Question 1

Variable

Answer 1

anything that can change and be measured.

Question 2

X-axis

Answer 2

the horizontal reference line in a coordinate system that represents the independent variable or quantity being measured

Question 3

y-axis

Answer 3

the vertical axis on the Cartesian coordinate plane

Question 4

scale

Answer 4

understanding the size of things compared to each other

Question 5

bar graph

Answer 5

used to compare the frequency of a category or characteristic with that of another category or characteristic.

Question 6

line graph

Answer 6

a graphical display of information that changes continuously over time

Question 7

pie graph

Answer 7

a circle divided into a series of segments

Question 8

scatter plot

Answer 8

a type of visual representation of data in which each set of values are plotted as an ordered pair

Question 9

dependent variable

Answer 9

the variable being tested or measured during the experiment.

Question 10

independent variable

Answer 10

the variable that is being changed during the experiment

Question 11

line of best fit

Answer 11

a line through a scatter plot of data points that best expresses the relationship between those points

Question 12

direct relationship

Answer 12

a relationship where the variables increase or decrease together

Question 13

indirect relationship

Answer 13

the two variables vary indirectly (or inversely) to each other. This means that as one quantity goes up, the other quantity goes down.

Question 14

proportional relationship

Answer 14

relationships between two variables where their ratios are equivalent