A. Evaluating the Combination of \( N \) Objects Taken \( n \) at a Time Evaluate the following.
1. \( { }_{4} \mathrm{C}_{2} \)
2. \( { }_{6} \mathrm{C}_{4} \)
3. \( { }_{5} \mathrm{C}_{3} \)
4. \( { }_{3} \mathrm{C}_{2} \) \( \qquad \)
5. \( { }_{7} \mathrm{C}_{5} \) \( \qquad \)
B. Computing for the Mean of a Sample
Find the mean of the following sets of numbers.
Sample
6. \( 4,7,11 \) \( \qquad \)
7. \( 2,5,7,1 \), \( \qquad \)
8. \( 18,5,13,9,11 \) \( \qquad \)
9. \( 12,19,14,7,10,4 \) \( \qquad \)
10. \( 6,15,27,22,16,19,24 \) \( \qquad \)