3 years ago

1

Mathematics

1 answer:

ch4aika [34]3 years ago

8 0

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

if michaels score is 87, the class average is 82, and the standard deviation is 4. what is michaels z-score?

AlexFokin [52]

Answer:

Z = 1.25

Step-by-step explanation:

$\displaystyle Z=\frac{\text{Observed Value}-\text{Mean of the Sample}}{\text{Standard Deviation of the Sample}}\\\\Z=\frac{x-\mu}{\sigma}\\ \\Z=\frac{87-82}{4}\\ \\Z=\frac{5}{4}\\ \\Z=1.25$

Hence, Michael's z-score is 1.25, which means that he scored 1.25 standard deviations above the class average.

3 0

2 years ago

Find the domain of the relation represented on the mapping diagram:

salantis [7]

The domain equals all of the x values which are represented on the left in a mapping diagram.

Order the values in order from L to G and put them within braces.

Final answer: x= {3, 6, 8}

7 0

4 years ago

Consider the function represented by the table

rewona [7]

Answer:

f(9) =5

Step-by-step explanation:

We have an input x and an output f(x)

The input in the last row is 9 and the output is 5

The input x=9 and the output f(9) =5

f(9) =5

4 0

3 years ago

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