Which of the following describes a ratio of actual events to the number of trials in an experiment? select all that apply. prediction experimental probability theoretical probability relative frequency trial uniform probability model

Experiental probability is the correct choice because you will have actual data from an experiment that you are using to create the ratio of outcomes to attempts. This is the scientific and mathematical name for a tested ratio. Theoretical probability, on the other hand, is what you would expect to happen if you were to perform the test.

The vertex of the quadratic function is (1.5, -.75)

Answer is a not really sure tho