Suppose that the probability that a person books a hotel using an online travel website is 0.68. For the questions that follow, consider a sample of fifteen randomly selected people who recently booked a hotel.
What is the probability that exactly ten people of out of fifteen used an online travel website when they booked their hotel. round the nearest thousandth.
a. 0.048
b.0.552
c.0.287
d.0.213
The right answer is .213 but I am not sure how to get to that solution. What formular shud I be using?