GAOKAO · Probability · Advanced
Probability: A binomial random variable has math trials and success probability math. What is its mean?
Classical probability, independence.
Try the problem
A binomial random variable has trials and success probability . What is its mean?
Hint and answer
Concept to use
Conditional tables.
Hint
Use .
Answer
50
More Probability problems
Practice more with the free Probability worksheet generator, or browse the full problem library.