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butalik [34]
2 years ago
14

Round to the nearest hundredth

Mathematics
1 answer:
Artist 52 [7]2 years ago
8 0
They are already rounded?; unless you need to round lower
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Diane's Tree Trimming Service has trimmed hundreds of trees in the Greater Denver area. The time it takes to trim a tree is norm
kkurt [141]

Answer:P(28.5And we can find this probability with this difference:

P(-0.7

And in order to find these probabilities we use tables for the normal standard distribution, excel or a calculator.

P(-0.7

So then the best answer would be 21.82 %

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 time it takes to trim a tree of a population, and for this case we know the distribution for X is given by:

X \sim N(32,5)  

Where \mu=32 and \sigma=5

We are interested on this probability

P(28.5

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:P(28.5And we can find this probability with this difference:

P(-0.7

And in order to find these probabilities we use tables for the normal standard distribution, excel or a calculator.

P(-0.7

 So then the best answer would be 21.82 %

8 0
3 years ago
Please help me with the question. Will mark brainliest.
Inessa05 [86]

Step-by-step explanation:

A.) Ok, so the mean price for Southtown is 72,800.

And the mean price for middle town is 54,900

So Southtown has the higher mean price.

Explanation:

To find the mean. You must first add up all the numbers, then divide the total by how many numbers you added up.

72,000 + 50,000 + 68,000 + 93,000 + 81,000 = 364,000

Then,

364,000/ 5 = 72,800

B.) It is 17,900

Explanation:

72,800 - 54,900 = 17,900

Hope this helps you out!!! : )

6 0
3 years ago
Express the relation {(-3, 4), (-1, 2), (3, -4), (2, -2)} as a table and a graph. What is the domain and range?
LuckyWell [14K]

Answer:

help

Step-by-step explanation:

please help please help please help please help please help first to asnwer gets brainleyist

2. Find the area of the parallelogram.

A.38cm

B.60cm

C.70cm

D.186cm

4 0
3 years ago
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Vilka [71]
I have to admit I don't know what exactly you are asking, but I think this is it: 10m/s.
Divide m/s by time.
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Please answer quick I need help with this one <br>Find x and the measure of each angle.​
Maslowich

70 degree angle for T,R,Q and T,R,S is 140 degree

6 0
3 years ago
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