Step For Independent random samples, the sampling distribution of X, - X, has the following variance.
Recall that the standard deviation is the square root of the variance, so the standard deviation of the sampling
distribution of X, - *, has the following standard deviation
5,-
Therefore, to describe the variability of this distribution, we will determine the value of the standard deviation
using these formulas. Recall that we were given - 33,0 - 4,0 - 40,- 20,0 - 2, and nz - SO
Use the necessary values to find the standard deviation of the sampling distribution (Round your final answer
to three decimal places.)
SO
23
The variability of the sampling distribution of *, -, is described by the standard deviation, rounded to three
decimal places, of

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

1: -2 3/4, -2 1/2, -14, 0, 3, 8 1/3

2: -4, -3, -2 1/2, -2 1/4, 3 1/4,

step-by-step explanation:

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

0.038

step-by-step explanation: