En una caja hay bolillas blancas, negras y 5 rojas. Se extrae una bolilla de la caja. Se sabe que la probabilidad de obtener una bolilla blanca es 3/5 y la de obtener una negra es 1/3. Cuántas bolillas hay en la caja?

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.