All brawn? The figurebelowplotsthe averagebrain weightin gramsversusaveragebody weightin kilogramsfor 96 speciesof mammals 2 Thereare manysmallmammalswhose pointsoverlapat the lowerleft . (a) The correlationbetweenbodyweightand brainweightis = 0.86 Explainwhat this valuemeans . (b) Whateffectdoesthe elephanthaveon the correlation Justifyyouranswer 4500 - Elephant . 4000 - 22. 3500 - 3000 - 2500 - Brain weight (g) 2000 - 1500- . Dolphin . Human 1000- 500 - . Hippo 0 0 400 800 1200 1600 2000 2400 2800 Body weight (kg) Dataon datingRefer to Exercise20. . (a) Howwould changeif all the men were6 inchesshorterthan the heightsgiven 24. in the table? Doesthe correlationtell us if womentend to date men tallerthan themselves