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1 year ago

suppose that a set of scores has a mean of 5 and standard deviation of 2. what score corresponds to a z score of -2.0?

1 answer:

5 0

The set of scores has a mean of 5 and a standard deviation of 2. The score which corresponds to a z score of -2.0 is 1.

Given in the question,

Mean (m) = 5

Standard deviation σ =2

Z-score = -2

The score x,

= Z = x - m / σ

= -2 = x - 5 / 2

= -4 = x - 5

= x = 1

Standard deviation in statistics means the amount of dispersion or variations in the set of values. A lower standard deviation means the value is closer to the mean while a higher standard deviation means the value is farther away from the mean.

To learn more about standard deviation, mean, median, and mode,

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Answer:

Step-by-step explanation:

Factory A proportion:

3 : 2,000

Factory B proportion:

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1 : 900

Now plug in 18,000 to each proportion:

Factory A:

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3 : 2,000

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Factory B:

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Step-by-step explanation:

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(ii) Every negative rational number is less than 0.

(iii) Every positive rational number is greater than every negative rational number.

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You have a lot of questions here, I can help you with a few of them.

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Here are the answers for the first three:

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