Bronson is ordering cheesecake at a restaurant, and the server tells him that he can have up to three toppings: strawberries, caramel, and whipped cream. Since he cannot decide how many of the toppings he wants, he tells the server to surprise him. If the server randomly chooses which toppings to add, what is the probability that Bronson gets just strawberries and whipped cream? Express your answer as a fraction or a decimal number rounded to four decimal places.