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Phantasy [73]
2 years ago
9

I need help with questions 9

Mathematics
1 answer:
azamat2 years ago
4 0

Answer:

2

Step-by-step explanation:

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A score that is three standard deviations above the mean would have a z score of
tia_tia [17]

The value of z-score for a score that is three standard deviations above the mean is 3.

In this question,

A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.

Let x be the score

let μ be the mean and

let σ be the standard deviations

Now, x =  μ + 3σ

The formula of z-score is

z_{score} = \frac{x-\mu}{\sigma}

⇒ z_{score} = \frac{\mu + 3\sigma -\mu}{\sigma}

⇒ z_{score} = \frac{ 3\sigma }{\sigma}

⇒ z_{score} = 3

Hence we can conclude that the value of z-score for a score that is three standard deviations above the mean is 3.

Learn more about z-score here

brainly.com/question/13448290

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6 0
2 years ago
There were 28,000 wolves in North Carolina in the 1950, but the population has declined by 8% each year.
jonny [76]

Answer:

8016

Step-by-step explanation:

28,000 x 0.92^15 = 8016.327314

5 0
2 years ago
Solve for <br> Show work<br> x-2&lt;10
madam [21]

Answer:

x=11,10,9,8,7,6,5,4,3,2,1,0, and all the negative numbers could be subsituted for x

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A sports company conducted a road test of a new model of a geared bike. The test rider cycled (3x − 2) miles on a flat road, (x2
Arisa [49]

Answer:

start with what you know

Step-by-step explanation:

makes you smarter

4 0
2 years ago
4. A classmate is having difficulty finding the measures of &lt;BGE and &lt;BDG in the diagram on the right. What mathematical a
Firlakuza [10]
Part 1) Find the measures of angle BGE
we know that
The inscribed angle measures half of the arc it comprises.
so
angle BGE=(1/2)*[arc EB]  

Part 2) Find the angle BDG
we know that
The measure of the external angle is the semi-difference of the arcs that it covers.
so
angle BDG=(1/2)*[arc GEB-arc GB]

8 0
3 years ago
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