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a researcher takes a sample from a population and computes a statistic for the sample, which of the following statements is correct? Please explain

a. sample stat. overestimates the corresponding population parameter, then stat. is biased

b. sample stat. underestimates the corresponding population parameter, then stat. is biased

c. sample stat. is equal to the corresponding population parameter, then stat. is unbiased

d. none of the above

The following function is called a Gaussian Function. Gaussian functions are used in statistics, image processing, sig processing, and in mathematics to solve heat and diffusion equations. -(x-b)2 f(x) = ae 202 Find the first and second derivative of the given Gaussian function when a = 4, b = -1, and c = 1 f' () = f" (x) =(1 point) The following function is called a Gaussian Function. Gaussian functions are used in statistics, image processing, signal processing, and in mathematics to solve heat and diffusion equations. (x-6)2 f(x) = de 22 Find the first and second derivative of the given Gaussian function when a = 3, b = 1, and c = 2 f' ( x ) = f" (x) = NOTE: It will be much easier to type your answer if you simplify the derivative functions (but is not necessary)