AIR MATH

Math Question

There are 20 students in Ms. McGee's class. Ms. McGee is selecting seven students for a project. Which of the following could be used to determine how many DIFFERENT groups of seven students can be chosen? Select one: \( { }_{20} \mathrm{C}_{7} \) \( { }_{20} \mathrm{P}_{7} \) \( { }_{20} \mathrm{P}_{13} \) \( { }_{20} \mathrm{C}_{13} \)

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