9.20 let x be chi-squared with k = 5 degrees of freedom. (a) what is p[x > 1]? (this exact calculation requires some serious integration) (b) find p[x > 1] with the normal approximation, i. e., approximate the probability assuming x ~ n(mu, sigma squared), where mu and sigma squared are the mean and variance of a gamma(5/2, 1/2).

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

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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rauschg

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