scientific inquiry - processing & analysing data

Question 1

scatterplot graph

Answer 1

used for correlational data, no independent or dependent variables. non-experimental

Question 2

column graph

Answer 2

equal width. don’t touch. discrete or qualitative. experimental

Question 3

line graph

Answer 3

continuous data with no class intervals

Question 4

histogram

Answer 4

continuous data including class intervals

Question 5

summary table

Answer 5

summarises key findings of the study

Question 6

frequency table

Answer 6

lists values and number of times each value occurs in study in data set

Question 7

measures of strength

Answer 7

0-0.29 = weak relationship
0.3-0.69 = moderate relationship
0.7-1 = strong relationship

Question 8

mean & median

Answer 8

mean has pros of all values being accounted from, but cons of being more sensitive to outliers. median has pros of not being affected by outliers, cons of perchance not being a number in the original data