Add probability resource (#9203)

Added Khan Academy as a resource to learn probability

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/computer-science/content/probability@HZ3_xyphbjhBPwwQo_rHH.md

@@ -4,12 +4,5 @@ Probability is the study of how likely an event is to occur. It is a measure of
 
 Visit the following resources to learn more:
 
+- [@article@Probability - Khan Academy](https://www.khanacademy.org/math/statistics-probability/probability-library)
 - [@video@MIT 6.042J - Probability Introduction](https://www.youtube.com/watch?v=SmFwFdESMHI&index=18&list=PLB7540DEDD482705B)
-- [@video@MIT 6.042J - Conditional Probability](https://www.youtube.com/watch?v=E6FbvM-FGZ8&index=19&list=PLB7540DEDD482705B)
-- [@video@MIT 6.042J - Independence](https://www.youtube.com/watch?v=l1BCv3qqW4A&index=20&list=PLB7540DEDD482705B)
-- [@video@MIT 6.042J - Random Variables](https://www.youtube.com/watch?v=MOfhhFaQdjw&list=PLB7540DEDD482705B&index=21)
-- [@video@MIT 6.042J - Expectation I](https://www.youtube.com/watch?v=gGlMSe7uEkA&index=22&list=PLB7540DEDD482705B)
-- [@video@MIT 6.042J - Expectation II](https://www.youtube.com/watch?v=oI9fMUqgfxY&index=23&list=PLB7540DEDD482705B)
-- [@video@MIT 6.042J - Large Deviations](https://www.youtube.com/watch?v=q4mwO2qS2z4&index=24&list=PLB7540DEDD482705B)
-- [@video@MIT 6.042J - Random Walks](https://www.youtube.com/watch?v=56iFMY8QW2k&list=PLB7540DEDD482705B&index=25)
-- [@feed@Explore top posts about Statistics](https://app.daily.dev/tags/statistics?ref=roadmapsh)