The value of a correlation coefficient, r, is 0.9841. what does the value of the correlation coefficient indicate? a)there is a strong negative correlation between Yumiko’s exercise time and how far she runs.

b)there is a weak or no correlation

c)there is a casual relationship

d) there is a strong positive correlation

a. she will receive a refund of $278.

step-by-step explanation:

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step-by-step explanation:

drop out of school or go to quizlet, quizlet is better

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)