Como ha cambiado la actividad industrial en los últimos doscientos años?

For each of the following examples of data, determine which scale of measurement is used. a) the number of miles joggers run per week. b) the starting salaries of graduates of mba programs c) the months in which a firm's employees choose to take their vacations. d) the final letter grades received by students in a math course.

Why is mary salter ainsworth a central figure in psychology?

How can i cope with anxiety/stress ? i need the best ways.