Answer:
its D i do belive
Step-by-step explanation:
- 0.40666
Given that:
Mean, m = 21.1
Standard deviation, s = 5.0
Score, x = 15
Zscore formula :
Zscore = (x - m) / s
Zscore = (15 - 21.1) / 15
Zscore = - 6.1 / 15
Zscore = - 0.40666