💥 Q 87: Prep 3 Algebra Question Bank T1

a) If all individuals are equal in values, then ......

(a) \( X - \overline{X} > 0 \)

(b) \( X - \overline{X} < 0 \)

(c) \( \sigma = 0 \)

(d) \( \overline{X} = 0 \)

MR/Nasef.N

b) The standard deviation of the values 5, 5, 5, 5 equals ......

(a) 0

(b) 5

(c) 6

(d) 2

MR/Nasef.N

c) If the range of seven values is zero, then the standard deviation of these values equals ......

(a) 7

(b) \( \sqrt{7} \)

(c) zero

(d) 1

Answers:
1) c
2) a
3) c