Select all the distribution shapes for which it is most often appropriate to use for mean. A. Bell shape
B. Bi model
C. Skewed
D. Symmetric
E. Uniform

D. Symmetric

E. Uniform

Step-by-step explanation:

For a uniform or symmetrical distribution, the mean, median, and mode are equal. In this type of distribution shape, the mean is the best indicator of central tendency, because it includes all of the data in the calculations.

But for a skewed distribution, the median is often the best measure of central tendency.

Therefore, the correction options are;

D. Symmetric

E. Uniform

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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step-by-step explanation: