Questions on The Concept of Random Variables From Statistics and Probability (From Khan Academy)

1: Random variables

1.1: Constructing probability distributions

Question 1:







Question 2:







1.2: Probability models

Question 3:






2: Probability with discrete random variables

Question 4:






3: Combining random variables

Question 5:







Question 6:







4: Identifying binomial variables

Four Conditions of Binomial Variable

1. There are fixed number of trials.

2. Each trial results in a success of failure.

3. A trial is independent of other trials.

4. Probability of success remains constant over time.

Question 7:







Question 8:







Question 9:







5: Binomial probability formula

Question 10:







Question 11:










Question 12:










6: Calculating binomial probability

Question 13:







Question 14:







7: Binomial vs. geometric random variables

Question 15:




Question 16:




Question 17:




Question 18:




8: Geometric probability

Question 19:







9: Cumulative geometric probability

Question 20:






Question 21:






Question 22:






Question 23:

Tags: Technology,Mathematical Foundations for Data Science,