## Introductory Statistics 9th Edition

Σy = $914$ $(Σy)^{2} = 835396$ $Σy^{2} = 144932$
Σy = $(216+184+35+92+144+175+11+57) =$914 $(Σy)^{2} = 914\times914 = 835396$ $Σy^{2} = (216\times216)+(184\times184)+(35\times35)+(92\times92)+(144\times144)+(175\times175)+(11\times11)+(57\times57) = 46656+33856+1225+8464+20736+30625+121+3249 = 144,932$