Construir un gráfico para cada situación y resolver. 4. Un poste de hierro clavado verticalmente en el suelo, proyecta una sombra que mide 60 cm. Hallar la altura
del poste, si la distancia entre su punta y el extremo de su sombra es de 100 cm.
ales es de 150 metros.​

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