{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/b71b023ee6de42a2810027c3a6615ef9\" 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/b71b023ee6de42a2810027c3a6615ef9-00001.jpg","duration":173,"title":"SAT 2019 oct_S4_Q38","description":"p: the mean of the scores for group A is 5, and the mean of the scores for group B is 7. What is the mean of the scores for the 20 players in groups A and B combined?"}