video1.0<iframe src="https://www.loom.com/embed/297b09320691491684e92e1e35321c79" frameborder="0" width="1840" height="1380" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>13801840Loomhttps://www.loom.com13801840https://cdn.loom.com/sessions/thumbnails/297b09320691491684e92e1e35321c79-b6ce9ffc408990ba.gif2263.091In this video, I walk through a problem involving discrete probability distributions, specifically focusing on finding the value of k and calculating probabilities for random variables D1 and D2. I demonstrate how to derive k as 600 over 137 and calculate the probability of their sum equaling 80, which I found to be approximately 0.0376. Additionally, I explore an arithmetic sequence related to a quadrilateral's angles and determine the conditions under which the smallest angle exceeds 50 degrees. I conclude by identifying the probabilities associated with specific values of d, ultimately leading to a probability of 90 over 137. Please review the calculations and ensure you understand the steps taken to arrive at these results.