Question 18 (1 point) Saved The following information regarding a dependent variable y and an independent variable x is provided: Σx = 90 Σ(y - )(x - ) = -156 Σy = 340 Σ(x - )2 = 234 n = 4 Σ(y - )2 = 1974 SSR = 104 The mean square error (MSE) is Question 18 options: 1870. 1974. 13. 935.

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.