- The scores of 5 students in an examination are: 6, 5, 8, 7 and 4. Find the variance.?

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Have any of you had first-hand experience with ghosts or spirits? If so, do you have any evidence? The polynomial of degree 3, P(x), has a root of multiplicity of 2 at x=5 and a root of a multiplicity at x=-2. The y-intercept is y=-30? How does niche affect biodiversity? Updated calc question**? Two dice are tossed, what is the probability of not getting a sum of five?
written as a fraction?