Answer:
Mean or average score of Monica is 150.
Step-by-step explanation:
We have been given that Monica scored 175, 142 and 133.
[tex]Mean=\frac{\text{Sum of observations}}{\text{Number of observations}}[/tex]
Here, we have three number of observations since she bowled three games.
[tex]Mean=\frac{175+142+133}{3}[/tex]
On simplification:[tex]Mean=150[/tex]