A drawer contains 4 red socks, 6 white socks, and 10 blue socks. Without looking, you draw out a sock and then draw out a second sock without returning the first sock.
What is the probability that the first sock and the second sock are both white.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.