A score of is 3 standard deviations above the mean.
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A: Given the mean= 69 and standard deviation = 5 So, z score of 61 is:
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A: Here, n = 400 and p = 0.59
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Q: The results of a common standardized test used in psychology research is designed so that the…
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A: Introduction: For a normally distributed random variable, X with mean μ, and standard deviation σ,…
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A: See the below solution
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A: Given : Mean, μ = 30 standard deviation, σ = 10 x = 55
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A: The distribution of SAT scores is normal with a mean of 550 and a standard deviation of 120. What…
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A: Given X=9,
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A: Solution: Let X be the score on a standardized test. From the given information, X follows normal…
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A: given mean μ=60 , standard deviation σ=12 now for the normal distribution z=x-μσ z=x-6012 to find…
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A: Given information Mean µ = 190 Standard deviation σ = 20
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A: Given: Mean = 50 Standard deviation (σ) = 20
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A: Here Given for Normal distribution with Mean=μ=30 SD=σ=6
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A: In this problem, we are going to using The empirical rule(68-95-99.7 Rule)
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