. >> thank you, scott, and ab bra hamelin con high school and i am pleasure to be here and i thank you guys for what do you and what i do is teach math, and so statistics is the one of the things that drew me here, and what you presented was definitely amazing, to jet gentleman that i am from mississippi and the number can be, and it has a larger population, but the big thing here is that i would like to ask, is the correlation of data the things that you are talking about, and the gentleman, mr., haney, okay, your question i think was appropriate, and but i think that also it needs to be asked is breaking things down by grade level. and social promotion, if i understand exists here in san francisco unified, and so we are getting students that have things that are happening before they get to the high school. and then to say that we are going to wind up fixing it, and i think that the data will be nice is to find out when, they failed their classes. and so if they failed it in the 9th grade or tenth or eleventh grade and now we have a subset and i think that all of this data is good, b