Final answer:
The likely focus of the solutions in Wackerly's Mathematical Statistics is Probability.
Step-by-step explanation:
The likely focus of the solutions in Wackerly's Mathematical Statistics is Probability.
Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles.
While it may be used in some statistical calculations, it is not the primary focus of Wackerly's Mathematical Statistics solutions.
Therefore, the correct answer is b) Probability.