The table shows the results of a survey of college students. find the probability that a student’s first class of the day is a science class, given the student is female. round to the nearest thousandth. first class of the day for college student male female m. f humanities 70 80science 50 80other 60 70

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.