For the following set of scores: 1,4,3,5,7 (a) If the scores are a population, what are the variance and standard deviation?

(b) If the scores are a sample, what are the variance and standard deviation?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato