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3 years ago

6

Suppose you have a mean standardized score of 1100 points with a standard deviation of 100 points. This data is normally distrib

uted. What is the z-score of 900 points?

1 answer:

dolphi86 [110]3 years ago

4 0

Using the formula <span>Z = (X - μ) / σ, X being 900, </span>μ being 1100, and <span> σ being 100, we can get the Z-score of -2.</span>

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$(x - 5) ^{5} = {x}^{5} - 25 {x}^{4} + 250 {x}^{3} - 1250 {x}^{2} + 3125x- 3125$

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From the Pascal's triangle,

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Because of the negative sign, the expansion will alternate sign.

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