Calculating the variance
What is the variance of a binomial distribution where 25 coins are flipped, each having a 30% chance of heads?
Latihan ini adalah bagian dari kursus
Foundations of Probability in R
Petunjuk latihan
- Calculate this using the exact formula you learned in the lecture: the variance of the binomial is size * p * (1 - p). Print this result to the screen.
- Confirm with a simulation of 10,000 trials.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
# Calculate the variance using the exact formula
# Confirm with a simulation using rbinom