Which of the following is not a characteristic of a geometric distribution? A. There are exactly two possible outcomes: success and failure.
B. The probability of success is the same for all trials.
C. There are a fixed number of observations.
D. You should perform x trials until you observe a success.
E. Each trial is independent.

Use the graph to determine the range. which notations accurately represent the range? check all that apply. (–∞, 2) u (2, ∞) (–∞, –2) u (–2, ∞) {y|y ∈ r, y ≠ –2} {y|y ∈ r, y ≠ 2} y < 2 or y > 2 y < –2 or y > –2

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.