For this exercise assume that the matrices are all nxn. The statement in this exercise is an implication of the form "If "statement 1", then "statement 2"." Mark an implication as True if the truth of "statement 2" always follows whenever "statement 1" happens to be true. Mark the implication as False if "statement 2" is false but "statement 1" is true. Justify your answer. If A is an nxn matrix, then the equation Ax = b has at least one solution for each b in R". Choose the correct answer below. A. The statement is true. By the Invertible Matrix Theorem, Ax = b has at least one solution for each b in R^ for all matrices of size nxn. B. The statement is false. By the Invertible Matrix Theorem, Ax = b has at least one solution for each b in R" only if a matrix is invertible. O C. The statement is true. By the Invertible Matrix Theorem, if Ax = b has at least one solution for each b in R", then the matrix is not invertible.
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
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