Exercise

Calculating cumulative density of a binomial

If you flip ten coins that each have a 30% probability of heads, what is the probability at least five are heads?

Instructions

100 XP

Answer the above question using the pbinom() function. (Note that you can compute the probability that the number of heads is less than or equal to 4, then take 1 - that probability).
Confirm your answer with a simulation of 10,000 trials by finding the number of trials that result in 5 or more heads.