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Subjects>Math>Statistics

How do you find probabilty of negative z score?

Anonymous

∙ 10y ago

Updated: 4/28/2022

Let z be positive so that -z is the negative z score for which you want the probability.

Pr(Z < -z) = Pr(Z > z) = 1 - Pr(Z < z).

Wiki User

∙ 10y ago

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Continue Learning about Statistics

What is the meaning of a negative z score?

A negative z score is a value that is less than the mean value.

Does a negative z score yield a negative probability value?

no, z score can be negative but a probability is a always positive between 0 and 1.

Can a negative z score be greater than a positive z score?

Assume the z-score is relative to zero score. In simple terms, assume that we have 0 < z < z0, where z0 is the arbitrary value. Then, a negative z-score can be greater than a positive z-score (yes). How? Determine the probability of P(-2 < z < 0) and P(0 < z < 1). Then, by checking the z-value table, you should get: P(-2 < z < 0) ≈ 0.47725 P(0 < z < 1) ≈ 0.341345

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To find the Z score from the random variable you need the mean and variance of the rv.To find the Z score from the random variable you need the mean and variance of the rv.To find the Z score from the random variable you need the mean and variance of the rv.To find the Z score from the random variable you need the mean and variance of the rv.

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