2 years ago

6

Mathematics

1 answer:

madam [21]2 years ago

4 0

Answer:

A. a=12, b=63.c =36

Step-by-step explanation:

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Suppose that we will randomly select a sample of 106 measurements from a population having a mean equal to 19 and a standard dev

svet-max [94.6K]

Answer:

$z =\frac{18.45-19}{\frac{7}{\sqrt{106}}}= -0.809$

And if we use the normal standard distribution or excel we got:

$P(z$

Step-by-step explanation:

For this case we have the following info given:

$\mu = 19$ represent the mean

$\sigma = 7$ represent the standard deviation

$n = 106$ represent the sample size

The distribution for the sample size if we use the central limit theorem (n>30) is given by:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

And for this case we want to find the following probability:

$P(\bar X< 18.45)$

And for this case we can use the z score formula given by:

$z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And replacing we got:

$z =\frac{18.45-19}{\frac{7}{\sqrt{106}}}= -0.809$

And if we use the normal standard distribution or excel we got:

$P(z$

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3 years ago

162 is what percent of 200?

Bond [772]

Answer:

81%

Step-by-step explanation:

divide 162 by 200

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2 years ago

Find the circumference of each circle use 22/7 for pi?

swat32

Answer:

The formula to determine the circumference is: 2 x 3.14 x radius. All you need to do is plug in the value of the radius, 56, and multiply it by 2 and 3.14.

Step-by-step explanation:

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3 years ago

When constructing inscribed polygons and perpendicular lines how are the steps similar

bagirrra123 [75]

When constructing inscribed polygons and perpendicular lines, how are the steps similar?
<span>There are no similarities.</span>

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3 years ago

In the given diagram, what are angles 2 and 7 called?

natta225 [31]

Answer:

Vertically opposite angles

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2 years ago

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