10. Suppose we already know that 2 , A Zink = 210. Which of the numbers below is equal to E 1 point O 420 O 2 O 40 O 210 11. Which of the numbers below is equal to the summation ), 1 point O 48 0 7 O 63 O 70 12. Which of the following numbers is the variance of the set Z = {-2, 4, 7}? 1 point O V14 O 69 O 14 O 42 13. Which of the following sets does not have zero variance? (hint: don't do any calculation here, just think!) 1 point O {5, 5, 5,5, 5, 5, 5, 5, 5, 5, 5, 5, 5,5} O {2, 5,9, 13} O {0, 0, 0, 0, 0, 0,0} O {1, 1, 1, 1}