You asked amusement park visitors the question how many amusement parks have you visited this summer? The tally table shows the results. Which number line would be best to you to create a DOT plot of the set of data? A. a number line from 0 to 4. B. a number line from 1 to 5. C. a number line from 2 to 7 . D. a number line from 0 to 7

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