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hoa [83]
2 years ago
10

What is the square root of 31

Mathematics
1 answer:
vovikov84 [41]2 years ago
3 0

Answer:

5.567764363 or rounded off to two decimal places 5.57

Step-by-step explanation:

Calculator

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The average mark of candidates in an aptitude test was 128.5 with a standard deviation of 8.2.Three scores extracted from the te
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Answer:

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Step-by-step explanation:

We have the mean (m) 128.5 and the standard deviation (sd) 8.2, we must calculate the value of z for each one and determine whether or not it is an outlier:

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z = (152 - 128.5) /8.2

z = 2.86

The value of this is usually between -3 and 3, therefore when x is 102 it goes outside the range of the value of z, which means that this is the outlier.

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Step-by-step explanation:

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