Calculate the mean for samples for which the sample size and summation from nothing to nothing x∑x are given below. a. nequals=10, summation from nothing to nothing x∑xequals=8282 b. nequals=16, summation from nothing to nothing x∑xequals=336336

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?