A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12). Find the probability of rolling a number less than 10. The probability of rolling a number less than 10 is (Type an integer or a simplified fraction.)A fair coin is tossed 2 times in succession. The set of equally likely outcomes is {HH, HT, TH, 1T}. Find the probabilily of getting at leasi one tail. \"3. The probability of getting at least one tail is D. (Simplify your answer.) Use the formula for , C, to evaluate the given expression. CO 9 Cs = (Type an integer or a simplified fraction.)You volunteer to help drive children at a charity event to the zoo, but you can fit only 6 of the 19 children present in your van. How many different groups of 6 children can you drive? How many different groups of 6 children can you drive?Solve by a method of your choice. A medical researcher needs 4 people to test the effectiveness of an experimental drug. If 14 people have volunteered for the test, in how many ways can 4 people be selected? The 4 people can be selected in ways. (Simplify your answer. Type a whole number.)