Question: Consider a problem of simple linear regression as described in Sec. 11.2, and let R2 be defined by Eq. (11.5.26) of this section. Show that

Consider a problem of simple linear regression as described in Sec. 11.2, and let R2 be defined by Eq. (11.5.26) of this section. Show that
R2 =

R2 =

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