18 pts Group of answer choices ensuring data is free of errors [ Choose ] deliberate or accidental omission of data [ Choose ] data scattered in the data base without any pattern [ Choose ] an apparent pattern of missing data [ Choose ] simplest approach to missing data [ Choose ] useful when data is missing however is biased [ Choose ] unexpected value outside the expected range of data [ Choose ] require that certain assumptions are met and violations of the assumptions influence the validity of statistical results [ Choose ] Flag question: Question 2 Question 21 pts In statistics causality implies a correlation exists among variables Group of answer choices True False Flag question: Question 3 Question 31 pts Pearson's r correlation is a standardized measurement between two or more variables Group of answer choices True False Flag question: Question 4 Question 43 pts Group of answer choices +/- .1 [ Choose ] +/- .3 [ Choose ] +/- .5 [ Choose ] Flag question: Question 5 Question 51 pts Scatterplots allow us to examine the relationships between variables with visual ease Group of answer choices True False Flag question: Question 6 Question 61 pts The simplest way to numerically define the relationship between variables is called covariance. Group of answer choices True False