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wel
3 years ago
7

Divide and answer in simplest form:

Mathematics
2 answers:
cupoosta [38]3 years ago
5 0

Answer:

the answer is 1/15

Step-by-step explanation:

Ulleksa [173]3 years ago
3 0
13 divided by 5 is 2.6
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Shoe sizes for men in the United States are known to follow a normal distribution. If you calculated the z-score of a man's shoe
anastassius [24]

Answer:

This value means that his shoe size is 2.9 deviations above the population mean.

And we can find the approximate percentile for his measure like this:

P(Z

This correspond to the 99.8 percentile, so then his shoe size is 99.8% above all the shoe sizes.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the shoe size of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,\sigma)  

Where \mu represent the mean and \sigma the population standard deviation.

For this case we know that a man obtain a z score of z=2.9

This value means that his shoe size is 2.9 deviations above the population mean.

And we can find the approximate percentile for his measure like this:

P(Z

This correspond to the 99.8 percentile, so then his shoe size is 99.8% above all the shoe sizes.

3 0
3 years ago
The avocado own a 1/4 acre orchard. Two fifths of the orchard  is planted in orange trees. What fraction of an acre in planted i
Svetlanka [38]
Two\ fifths\ of\ the\ orchard= \frac{2}{5}  \cdot  \frac{1}{4}\  acre= \frac{1}{10} \ acre\\\\Ans.\ 0.1\ acre\  in\ orange\ trees.
5 0
3 years ago
Read 2 more answers
Need help with tree diagrams
oksian1 [2.3K]
There is a 50% chance.


Explanation:

There is always a 50-50 chance that the coin will land on either heads or tails.
6 0
2 years ago
Can the same radius or diameter have more than one way to be named explain
Dennis_Churaev [7]

Answer:

No, you could write the formula different but not change it

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume
olga nikolaevna [1]

Given:

The radius, r=4x

The height,

h=21xy^2

To find the volume of the cone:

The volume of the cone formula is,

V=\frac{1}{3}\pi r^2h

Substitute the values of r and h in the above formula we get,

\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}

Hence, the volume of the cone is

V=112\pi x^3y^2

Thus, the correct option is option D.

7 0
11 months ago
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