{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/1265bf9d96ad43ff90b98344acf27e51\" frameborder=\"0\" width=\"960\" height=\"720\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":720,"width":960,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":720,"thumbnail_width":960,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/1265bf9d96ad43ff90b98344acf27e51-00001.jpg","duration":107,"title":"SAT official #1_S4_Q21","description":"p:  The data in the table above were produced by a sleep researcher studying the number of dreams people recall when asked to record their dreams for one week. Group X consisted of 100 people who observed early bedtimes, and Group Y consisted of 100 people who observed later bedtimes. If a person is chosen at random from those who recalled at least 1 dream, what is the probability that the person belonged to Group Y ? \na:  68/100 ;\n79/100 ;\n79/164 ;\n164/200 ;"}