VIP Exclusive
PMF Probability Mass Function VIP Certification Exam
PMF — No single standardized certification exam exists specifically for Probability Mass Functions; this is an original comprehensive VIP practice set covering the full scope of PMF theory as tested in undergraduate and graduate probability/statistics courses, actuarial Exam P (SOA/CAS), and data science certification assessments.
57
Questions
90m
Time Limit
75.00%
To Pass
Question 1 of 57👑 VIP
A discrete random variable X has a probability mass function defined on the set {1, 2, 3, 4}. You are told that P(X=1) = 0.1, P(X=2) = 0.3, P(X=3) = 0.4, and P(X=4) = k. What must k equal for this to be a valid PMF?
Questions 2–57 and full explanations are VIP-exclusive.