Calculating the expected value
What is the expected value of a binomial distribution where 25 coins are flipped, each having a 30% chance of heads?
This exercise is part of the course
Foundations of Probability in R
Exercise instructions
- Calculate this using the exact formula you learned in the lecture: the expected value of the binomial is size * p. Print this result to the screen.
- Confirm with a simulation of 10,000 draws from the binomial.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Calculate the expected value using the exact formula
# Confirm with a simulation using rbinom