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During a research, the amount of Internet users was measured. Each time three random groups of 10,000 people of the average a

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> y=c(1500, 1250, 180, 3100, 2600,530, 4550, 4210,910, 6290,5730,1320) > xl-c(1,1,1,3,3,3,5,5,5,7,7,7) > x2-c(20, 40, 60,20,

b) estimate o2 By using Rsoftware R code x = c(1111,3,3,3,5,515, (ד,ד,ד A X2 = c(20,40,60,20,40,60, 20,40,60, 20,40,60) y = C

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