If you roll a die 20,000 times and from these rolls you get either a 1,2, or 3 11,000 times, how can you calculate the confidence interval at 95% for the probability to get a 1,2, or 3?
The probability for each of the numbers is 1/6, and the the critical value for 95% is 1,96. But I don't know how to calculate the confidence interval.
Any hints, please
Thanks