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3 years ago

true or false the five ways to display a relation are with ordered pairs, tables, mapping diagrams, a graph, and an equation.

Mathematics

1 answer:

baherus [9]3 years ago

3 0

Answer:

I would say false

Step-by-step explanation:

the five ways i learned: Graph, Table, Symbols, Words, & Picture/context.

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3 years ago

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

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4 years ago

Translate the inequality and solve. Negative three times a number is less than six.

mart [117]

Answer:

x>-2

Step-by-step explanation:

The translated inequality to be solved is -3x<6

You divide -3 by both sides which switches the sign because it is negative, there fore the answer is x>-2.

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Tpy6a [65]

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Step-by-step explanation:

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true or false the five ways to display a relation are with ordered pairs, tables, mapping diagrams, a graph, and an equation.​

true or false the five ways to display a relation are with ordered pairs, tables, mapping diagrams, a graph, and an equation.