3 years ago

Which of the following data sets represent a function?

Mathematics

1 answer:

scoundrel [369]3 years ago

7 0

Answer:

{(3,9) , (7,4) , (1,6)} represents a function.

Step-by-step explanation:

A function must have only one x-value per y-value. There cannot be two or more x-values in a function with different y-values. All of the other options have two or more x-values that are the same.

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A population has a mean µ = 6 and ∑x = 48. How many scores are in the population?

maks197457 [2]

Answer:

Step-by-step explanation:

Recall the formula for the population mean of a data set:

$\mu=\frac{\sum x}{N}$

We already know that μ is 6 and the sum is 48. Substitute:

$6=\frac{48}{N}$

Divide both sides by 48:

$\frac{1}{8}=\frac{1}{N}$

Reciprocal of both sides:

$N=8$

Thus, there are 8 scores in the population size.

And we're done!

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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What is the sum of 386,98,1734

kolbaska11 [484]

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4 years ago

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<img src="https://tex.z-dn.net/?f=%282%2F3%29%5E%7B3%7D" id="TexFormula1" title="(2/3)^{3}" alt="(2/3)^{3}" align="absmiddle" cl

tiny-mole [99]

Answer:

$\frac{8}{27}$

Step-by-step explanation:

$(\frac{2}{3} )^3 = \frac{2^3}{3^3} = \frac{2 \times 2 \times 2}{3 \times 3 \times 3} = \frac{8}{27}$

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