Round it to the four decimal places

Marissa buys a bag of cookies that contains 4 chocolate chip cookies, 7 peanut butter cookies, 4 sugar cookies, and 7 oatmeal cookies. What is the probability that Marissa reaches in the bag and randomly selects an oatmeal cookie from the bag, eats it, then reaches back in the bag and randomly selects a sugar cookie? Round your answer to four decimal places. Enter a mathematical expression [more..] .I. . lI .- H