! \" LCS Learning Platform A Topic One Quiz Blank page e Find The Mean And Stand
ID: 3299683 • Letter: #
Question
! " LCS Learning Platform A Topic One Quiz Blank page e Find The Mean And Standar + (- | webassign.netweb/Student/Assignment-Responses/last?dep-16g63971 Driling dowin beneach a lake in Alaska yields chemical evidence of past changes in climate. Biological sicon, lat by the skelstons of singe-celled areatures called datoms, measures the abundance of Ife in the lake. A rather complex variable based cn the ratio of cartain isctopes relative to ocean farther into the past. Hare are data from 2300 to 12.000 ycars ago sotope Silicon Lsotope Silicon Isotope Silicon (%) (mg/g) (%) (mg/g) | (%) (mg/g) -19.90 99-20.71 152-21.3 226 -19.84 106-20.90 267-21.63 237 -19.46 11-20.86 2721.19 184 20.20 139-21.28 2 19.37 333 (-) Make a scatterplot of slicon (resporse) apsinst isotope (explenatory) Isotope (%) Isotope(%) Slicon 100 150 200 250 300 350 -20 20.5 -21. -21.5 0-22 0 21.8-21.0-20.5-20.0-19.5-19.0 Silicon (m Slicon (mE) Isotope (%) 20 200 -21 lsotope(%) O Type here to search 244 PM 9/10/2017Explanation / Answer
a) for scatterplot : last option : bottom right is correct.
weak negative relation.
b) correlation with outlier : =-0.3472
corerlation without outlier =-0.7777
c) regression equation with outlier : Yhat =-511.78 -34.7
regression equation without outlier : Yhat =-1376.28 -75.8
for scatterplot: bottom left graph is right
please revert for detailed explanation
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.