Save Question 35 (2 points) The calculation of a student's grade is represented on a data-flow diagram as a data flow True False Save Question 36 (2 points) The purpose of the conceptual data model is to show as many rules about the meaning and interrelationships among data as possible ?True False Save 5 Question 37 (2 points) The data a sink receives and often what data a source provides are fixed. True False Save