Necesito ayuda con una tarea pero no entiendo y el profe no me explica bien.. En una orquesta, el triángulo y el timbal suenan juntos al iniciar una pieza musical qué dura 4 minutos. El timbal vuelve a sonar cada 12 segundos, y el triángulo cada 20 segundos. ¿Cuántos segundos después del inicio de la pieza musical volverán a sonar juntos ambos instrumentos?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?