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Assume that a given computer requires 0.002 seconds to complete the backward substitution on a 4000 x 4000 upper triangular matrix equation. Estimate the time needed to solve a general system of 9000 equations in 9000 unknowns using the Gaussian Elimination. Round your answer to the nearest second.

Consider the 4 data points (1,4), (2,9), (3,15) and (4,24). Find the exponential model that best fits the data points. You can round your numbers to two decimal places.

This second part of this course requires a solid knowledge of Math 203. As a refresher, solve the following system using Gauss Elimination and Backward Substitution:

The foundational element to be done before doing a t test is _____.

Consider the function , that has a root within the interval [a,b] = [0,1]. How many iterations of the bisection method are needed to approximate the root r within 5 correct places?

When a number is assigned to a specific category such as a 1= non-smoker and 2 = smoker, this is what type of variable?

Given the numbers 47, 20, 11, 33, 30, 30, 35, and 50, what is the mean?

If you are interested in displaying the parts of a whole, what graphic technique would you use?

Which data display tool contains one or more series of points connected by a line or lines to represent trends in time?

Incidence is the number of _____ cases of a disease.