Question

These should be more your speed @Vocaloid

Give me a moment to write them out on here then solve them.

Answer 1

\[X = [3, 5, 0, 2]\]
a. \[\sum X \]
b. \[\sum X^2\]
c. \[\sum X + 1\]
d. \[\sum (X + 1)\]

Answer 2

a. \[\sum X = \sum (3, 5, 0, 2) = 3 + 5 + 0 + 2 = 10\]
b. \[\sum X^2 = \sum (3, 5, 0, 2)^2 = 3^2 + 5^2 + 0^2 + 2^2 = 9 + 25 + 0 + 4 = 38\]
c. \[\sum X + 1 = \sum (3, 5, 0, 2) +1 = (3 + 5 + 0 + 2)+ 1 = 11\]
d. \[\sum (X + 1) = \sum (3 + 1, 5 + 1, 0+1, 2 +1) = 4 + 6 + 1 + 3 = 14\]

Answer 3

Next set,
\[X = (3, 2, 5, 1, 3)\]
a. \[\sum X^2 = \sum (3^2, 2^2, 5^2, 1^2, 3^2) = 9 + 4 + 25 + 1 + 9 = 48\]
b. \[(\sum X)^2 = \sum(3, 2, 5, 1, 3)^2 = (3+2+5+1+3)^2 = 14^2 = 196\]
c. \[\sum (X - 1) = (3 -1, 2-1, 5-1, 1-1, 3-1) = 2 + 1 + 4 + 0 + 2 = 9\]
d. \[\sum (X - 1)^2 = \sum(3 -1, 2-1, 5-1, 1-1, 3-1)^2 = (2 + 1 + 4 + 0 + 2)^2 = 9^2 = 81\]

Answer 4

am like sleep deprived so making sure I don't fail the first hw ._.

Answer 5

everything looks good to me