Express your answer as a decimal. 606/15

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect