0 3 -6 6 Consider the matrix A = 3 -7 8 -5 3 -9 12 -9 (a) Suppose Nul(A) is a subspace of R" and Col(A) a subspace of R*. What is the value of n? What is the value of k? (b) Find a basis for Nul(A). (c) Find a basis for Col(A).

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.