Answer:
Option c.
Step-by-step explanation:
Given information:
Mean = 50
Standard deviation = 6
Observed value = 60
We need to find the Z-score.
Formula for Z score is,
[tex]Z=\dfrac{x-\mu}{\sigma}[/tex]
where, x is observed values, [tex]\mu[/tex] is mean and [tex]\sigma[/tex] is standard deviation.
Substitute the given values in the above formula.
[tex]Z=\dfrac{60-50}{6}[/tex]
[tex]Z=\dfrac{10}{6}[/tex]
[tex]Z=1.6666...[/tex]
[tex]Z\approx 1.67[/tex]
Therefore, the correct option is c.
