Varying the number of trials
In the last exercise you tried flipping ten coins with a 30% probability of heads to find the probability at least five are heads. You found that the exact answer was 1 - pbinom(4, 10, .3) = 0.1502683, then confirmed with 10,000 simulated trials.
Did you need all 10,000 trials to get an accurate answer? Would your answer have been more accurate with more trials?
Ця вправа є частиною курсу
Foundations of Probability in R
Інструкції до вправи
- Try answering this question with simulations of 100, 1,000, 10,000, 100,000 trials.
- Which is the closest to the exact answer?
Інтерактивна практична вправа
Спробуйте виконати цю вправу, доповнивши цей зразок коду.
# Here is how you computed the answer in the last problem
mean(rbinom(10000, 10, .3) >= 5)
# Try now with 100, 1000, 10,000, and 100,000 trials