A simple random sample of size 10 is drawn without replacement from a universe containing 85 units. If the mean and SD , as obtained from the sample , are 90 and 4 respectively ,what is the estimate of the standard error of sample mean?

Lassify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3) linear function; linear term: −21x; constant term: −6 linear function; linear term: −18x2; constant term: −6 quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6 quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6

Which of the following describes the symmetry of the graph of y = x3?

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition