Use the formula for C to evaluate the given expression. 54 5 4 = (Type an integer or a simplified fraction.)From a club of 25 people, in how many ways can a group of five members be selected to attend a conference? A group of 5 members can be selected to attend a conference in ways.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 13. The probability of rolling a number less than 13 is (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 7 of the 19 children present in your van. How many different groups of 7 children can you drive? How many different groups of 7 children can you drive?A fair coin is tossed 3 times in succession. The set of equally likely outcomes is {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}. Find the probability of getting at least one head. . . . The probability of getting at least one head is (Simplify your answer.)