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
DochEvi [55]
3 years ago
10

Suppose SAT Mathematics scores are normally distributed with a mean of 518 and a standard deviation of 113. A university plans t

o recruit students whose scores are in the top 9%. What is the minimum score required for recruitment? Round your answer to the nearest whole number, if necessary.
Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer: the minimum score required for recruitment is 669

Step-by-step explanation:

Suppose SAT Mathematics scores are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = SAT Mathematics scores.

µ = mean score

σ = standard deviation

From the information given,

µ = 518

σ = 113

The probability value for the top 9% would be (1 - 9/100) = (1 - 0.09) = 0.91

Looking at the normal distribution table, the z score corresponding to the probability value is 1.34

Therefore,

1.34 = (x - 518)/113

Cross multiplying by 113, it becomes

1.34 × 113 = x - 518

151.42 = x - 518

x = 151.42 + 518

x = 669 to the nearest whole number.

You might be interested in
Evaluate the expression when x=3 , y=−4 , and z=−6.<br> z−2x/y
hichkok12 [17]

Answer:

9/2

distribute the value of x,y, and z, on the given questions, and then you do multiplication, next addition, lastly lowest term.

6 0
3 years ago
Help me in algebra please
Anit [1.1K]
First, u do -9+8x-4+8
Then, U simplify. The answer is 8x-5
3 0
3 years ago
Which graph represents the function y = cos(4x)?<br><br> Answer is graph B
VARVARA [1.3K]

Answer:

Step-by-step explanation:

Let the equation of the cosine function is,

y = Acos(Bx)

From the graph attached,

A = Amplitude = \frac{1-(-1)}{2}

   = 1

B = \frac{2\pi}{\text{Period}}

B = \frac{2\pi}{\frac{\pi}{2}-0}

B = \frac{4\pi}{\pi}

B = 4

Therefore, equation of the cosine wave given in the graph will be,

y = 1.Cos(4x)

y = Cos(4x)

7 0
2 years ago
Read 2 more answers
Piper signed up for a streaming music service where there's a fixed cost for monthly
Marta_Voda [28]

Answer:

I think the answer is 0.5 rate/number of songs she downloads. Sorry if I am wrong

Step-by-step explanation:

0.5x means that 0.5 is our rate and the question states that x represents the number of songs she downloads

5 0
3 years ago
a family's monthly utility costs are phone 200 electric 100 Cable TV 100 water and gas 50 internet 50 by eliminating cable by wh
AleksandrR [38]

Answer:

500

Step-by-step explanation:

I'm not sure

6 0
3 years ago
Other questions:
  • Let f(x)=2x+ 3 find f (2b)​
    6·2 answers
  • In ΔPQR, what is the m∠Q?.
    6·2 answers
  • Rob found that the coefficient of determination between the length of essays submitted to a teacher x and the score the teacher
    8·1 answer
  • Solve for x. Round to the nearest tenth of a degree, if necessary
    15·1 answer
  • What is the exact value of cos(195°)?
    5·2 answers
  • Pls Help!! I'll MARK YOU BRAINLIEST but please explain​
    12·1 answer
  • a number when on the to the nearest 10 is equal to 50 the same number one on the to the nearest hundred is 100​
    14·1 answer
  • To which set of numbers does -1.2 belong?
    11·1 answer
  • A bag contains 5 blue balls, 4 red balls, and 3 orange balls. If a ball is picked from the bag at random, what is the probabilit
    9·2 answers
  • Solve for x pls help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!