Identify what is missing in each statement (Base, Percentage, Rate). 1. 60% of 30 is___
2. 25% of ___ is 15
3. 8% of 265 is ___
4. What number is 8% of 56?
5. ___ is 18% of 235
6. 128 is 27% of ___
7. ___% of 12 is 13?
8. 30 is ___% of 100
9. 60% of 240 is ___
10. 16 is % of 38

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