We think that dwarfism in river birch might be a simple mendelian trait. we have taken a pure breeding normal plant and crossed it with a a pure breeding dwarf plant. the resulting f1 plants were normal height. the f1 plants were selfed and the f2 data is presented below: normal river birch 811 dwarf river birch 276 perform a chi square analysis on this data using the following hypothesis: the mode of inheritance for height in river birch is simple mendelian. what is the calculated chi-square value? round to three decimal places.