tolong yah kak,,, no 4 ajah yg no 5 gk ush d kerja.. mksih..

jawab

data lama  x1,x2, x3,..,xn.
data baru {k(x1) + r} , k(x2) + r, k(x3)+r,...,k(xn) + r}

nilai terkecil  = x1' = k(x1) + r
nilai terbesar = xn' = k(xn) + r

jangkuan lama = J =xn - x1
jangkauan baru =J' =  xn' - x1'
jangkauan = {k(xn) + r}  - {k(x1) + r}
J' = k(xn) + r - k(x1) - r
J' = k(xn - x1)
J' = k (J)