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Vinil7 [7]
3 years ago
9

What is the definition of a mean?

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
8 0

Answer:

There are several kinds of mean in mathematics, especially in statistics. For a data set, the arithmetic mean, also called the expected value or average, is the central value of a discrete set of numbers: specifically, the sum of the values divided by the number of values.

Step-by-step explanation:

Natali5045456 [20]3 years ago
6 0
The expected value or average, is the central value of a discrete set of numbers: specifically, the sum of the values divided by the number of values.

add up the total of your values the divide the total by how many of the values you added together.

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Due to the higher Z-score, Demetria should be offered the job.

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In this question:

Whichever applicant had grade with the highest z-score should be offered the job.

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Due to the higher Z-score, Demetria should be offered the job.

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3 years ago
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