I have a performance analysis and empowerment project of a school that was built in 1976. I drew the project in the idestatic environment, but I do not know how to enter the concrete data into the system. For example, there are 25 different core values in my hand, ranging from 5mpa to 15 mpa. Here, how can I find the characteristic compressive strength of the structure, how can I calculate the elasticity modulus and standard deviation? II studies