💥 Q 85: Prep 3 Algebra Question Bank T1

a) If the standard deviation of a set of data: \( X + 2, 5, y - 2 \) equals zero, then \( X + y = \) ………

(a) 4

(b) 5

(c) 9

(d) 10

MR/Nasef.N

b) If the standard deviation of the values: \( X + 6, y + 7, X + y \) is zero, then \( X - y = \) ………

(a) 1

(b) -1

(c) 0

(d) 13

Answers:
1) d
2) a