(Sample Statistics) Is the sample excess kurtosis is scale invariant? That is, for a random sample {Xi} n i=1, is it true that g X 2 = g Y 2 , where, ∀i ∈ {1, . . . , n}, Yi = bXi , 1 b ∈ R. Explain your answers. (Hint: remember that g X 2 = n −1 Pn i=1 Xi − X¯ 4 (sX) 4 − 3, where sX is the sample standard deviation of X.

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

answer: i wpould go with c

step-by-step explanation:

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b