<?xml version="1.0" encoding="UTF-8"?><oembed><type>video</type><version>1.0</version><html>&lt;iframe src=&quot;https://www.loom.com/embed/1265bf9d96ad43ff90b98344acf27e51&quot; frameborder=&quot;0&quot; width=&quot;960&quot; height=&quot;720&quot; webkitallowfullscreen mozallowfullscreen allowfullscreen&gt;&lt;/iframe&gt;</html><height>720</height><width>960</width><provider_name>Loom</provider_name><provider_url>https://www.loom.com</provider_url><thumbnail_height>720</thumbnail_height><thumbnail_width>960</thumbnail_width><thumbnail_url>https://cdn.loom.com/sessions/thumbnails/1265bf9d96ad43ff90b98344acf27e51-00001.jpg</thumbnail_url><duration>107</duration><title>SAT official #1_S4_Q21</title><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 ? 
a:  68/100 ;
79/100 ;
79/164 ;
164/200 ;</description></oembed>