1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
9

Why was 56 and 36 points selected?

Mathematics
1 answer:
AleksAgata [21]3 years ago
6 0
I don’t know , why don’t you tell me why they were selected
You might be interested in
Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below
BARSIC [14]

Answer:

Due to the higher Z-score, Demetria should be offered the job.

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In this question:

Whichever applicant had grade with the highest z-score should be offered the job.

Demetria got a score of 85.1; this version has a mean of 61.1 and a standard deviation of 12.

For Demetria, we have X = 85.1, \mu = 61.1, \sigma = 12. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{85.1 - 61.1}{12}

Z = 2

Vincent got a score of 299.2; this version has a mean of 264 and a standard deviation of 22.

For Vincent, we have X = 299.2, \mu = 264, \sigma = 22.

Z = \frac{X - \mu}{\sigma}

Z = \frac{299.2 - 264}{22}

Z = 1.6

Tobias got a score of 7.26; this version has a mean of 7.1 and a standard deviation of 0.4.

For Tobias, we have X = 7.26, \mu = 7.1, \sigma = 0.4.

Z = \frac{X - \mu}{\sigma}

Z = \frac{7.26 - 7.1}{0.4}

Z = 0.4

Due to the higher Z-score, Demetria should be offered the job.

3 0
3 years ago
Solve for x<br><img src="https://tex.z-dn.net/?f=4%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%207x%20%2B%202" id="TexFormula1" title="4 {x
Alina [70]

\bf 4x^2=7x+2\implies 4x^2-7x-2=0\implies (4x+1)(x-2)=0 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 4x\cdot x=\boxed{4x^2}~\hfill (1)(-2)=\boxed{-2}\hfill (4x\cdot -2)+(1\cdot x)=\boxed{-7x} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} 4x+1=0\implies 4x=-1\implies &x=-\cfrac{1}{4}\\[1em] x-2=0\implies &x=2 \end{cases}

7 0
3 years ago
10 points! Please Help! ASAP!!
Lady_Fox [76]
<span>A 90 degrees counterclockwise rotation about the origin followed by a translation 1 unit to the left</span>
3 0
3 years ago
If F(x)=-x+2 find f(4)
Digiron [165]

Answer:

-2

Step-by-step explanation:

f(x) = -x + 2

f(4) = -(4) + 2

f(4) = -2

5 0
3 years ago
Which of the following functions has the greatest y-intercept?
anyanavicka [17]
C, just consider when x=0,find the y
7 0
3 years ago
Read 2 more answers
Other questions:
  • Someone please help me with math.
    5·1 answer
  • Which system has no solutions?
    11·1 answer
  • John, Mary, and Carol are putting a puzzle together. John has found 35 pieces and Mary has found 28. If there are 100 pieces in
    9·2 answers
  • Solving system with substitution
    14·1 answer
  • Can you construct a triangle that has side lengths 8 m 10 m and 19 m
    7·1 answer
  • Not a question but thamks for helping
    10·2 answers
  • What is the value of b?<br> please help
    7·1 answer
  • The cost of a 12 ounce bag of cashews is $5.86. What is the cost per ounce of the cashews?
    14·1 answer
  • Number 3 answered please
    15·1 answer
  • - Systems of Linear Equations &amp; Inequalities
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!