Answer:
Correct
Step-by-step explanation:
Answer:

Step-by-step explanation:
The following information is missing in the question:
We have to find z-score for the given score on this dental anxiety scale: 12, 6
We are given the following information in the question:
Mean, μ = 11
Standard Deviation, σ = 4
We are given that the distribution of score is a bell shaped distribution that is a normal distribution.
Formula:

where x is the given score on this dental anxiety scale.
For x = 12

For x = 6

If x = -14, substitute the x back into the equation.
so now the equation is 2(-14) + 12. multiply the 2 by -14 first to get -28 + 12.
add those two together to get -16. hope this helps!