A biologist would like to estimate the average life span of an insect species. She knows that the insect's life span has standard deviation of 1.5 days. According to Chebyshev's Inequality, how large a sample should she choose to be at least 95% certain that the sample average is accurate to within ±0.2 days?

Someone answer this asap for the function f(x) and g(x) are both quadratic functions. f(x) = x² + 2x + 5 g(x) = x² + 2x - 1 which statement best describes the graph of g(x) compared to the graph of f(x)? a. the graph of g(x) is the graph of f(x) shifted down 1 units. b. the graph of g(x) is the graph of f(x) shifted down 6 units. c. the graph of g(x) is the graph of f(x) shifted to the right 1 unit. d. the graph of g(x) is the graph of f(x) shifted tothe right 6 units.