Unit 4: Probability, Random Variables, and Probability Distributions

/ Unit 4: Probability, Random Variables, and Probability Distributions

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You’ll learn the fundamentals of probability and be introduced to the probability distributions that are the basis for statistical inference.

Question Difficulty:

Question	Difficulty	Students Solved
Variance of a Discrete Random Variable	easy	16
Probability from a Cumulative Distribution Function	easy	10
Expected Value of a Lottery Ticket	easy	11
Law Of Large Numbers In Simulations	easy	12
Variance of a Sum of Independent Variables	easy	5
Definition of Independent Events	easy	8
Definitions of Independent Events	medium	4
Interpreting Differential Association	medium	4
Calculating Joint Probability	easy	6
Binomial Distribution Characteristics	easy	7
Conditional Probability and Independence	easy	5
Expected Value of a Discrete Random Variable	medium	9
Probability From a Two-Way Table	easy	7
Interpreting Expected Value	easy	5
Bayes Theorem And Medical Testing	medium	6
Law of Large Numbers for Proportions	easy	3
Assumption of Mutual Exclusivity	medium	3
Interpreting Standard Deviation of a Random Variable	easy	3
Joint Probability and Mutually Exclusive Events	easy	3
Discrete Random Variable Probability	easy	2

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Rank	User	Correct Count	Attempt Count	Time	Score
#1	thanooj_thutaram	34	50	0m 00s	3,240
#2	nazikersain	20	27	0m 03s	1,927
#3	h62018675	20	30	0m 16s	1,884
#4	cynthiayihan34	18	22	0m 00s	1,760
#5	diceans	14	19	0m 00s	1,350
#6	aadharshmeenak	14	20	0m 00s	1,340
#7	satyaachanti1710	12	14	0m 00s	1,180
#8	eiryuu1lol	10	20	0m 00s	900
#9	shylohikhajiagbe	9	11	0m 00s	880
#10	rishraowork	8	10	0m 00s	780

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