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
garri49 [273]
3 years ago
11

SAT scores are normally distributed, with a mean of 500 points and a standard deviation of 100 points. Suppose you take the SAT.

Several weeks later, you receive your results, which show that you reached the 80th percentile for the math portion.
Recalling that SAT scores are always expressed as multiples of 10, how many points did you get on the test?
Mathematics
2 answers:
Bad White [126]3 years ago
7 0

Answer:

580

Step-by-step explanation:

Apex

OleMash [197]3 years ago
3 0
The solution to the problem is as follows:

 <span>Let be X: scores of SAT 

P(X ≥ x) = 0.9 

P((X - 500)/100 ≥ (x - 500)/100) = 0.9 

P(Z ≥ z) = 0.9 

z = 1.28 

1.28 = (x - 500)/100 

128 + 500 = x 

x = 628
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
You might be interested in
Solve either of the correct equations using any
gregori [183]

Answer: 7 days

Step-by-step explanation: just knows it right :)

7 0
3 years ago
Read 2 more answers
Solve <br> 5k+6=7 for x <br><br> please I need it quick and fast
Bond [772]
Move the constant to the right
5k=7-6

calculate
5k=1

solution: k=1/5 or k=0.2
7 0
2 years ago
What is the value of x to the nearest tenth?
Ipatiy [6.2K]

Answer:

35

Step-by-step explanation:

4 0
2 years ago
Write each rational number as a terminating decimal.<br> 1. 19/20<br> 2. -1/8<br> 3. 17/5
Dima020 [189]
19/20= 0.95
-1/8= -0.125
17/5= 3.4
HOPE THIS HELPS!
8 0
3 years ago
Read 2 more answers
What is the measure of arc WYZ?<br> ----------<br><br> 231<br><br> 255<br><br> 200<br><br> 168
Nataly_w [17]

9514 1404 393

Answer:

  (a)  231°

Step-by-step explanation:

  arc WYZ = arc WX + arc XYZ

  arc WYZ = 51° +180° . . . . . XZ is a diameter, substitute known arc measures

  arc WYZ = 231°

7 0
3 years ago
Other questions:
  • What is2.3684 roundes to the neareat thousandth
    8·1 answer
  • Find the area of the shaded region.<br> You do not need to include units.<br> 21 in<br> 20 in
    13·1 answer
  • Plz help!!!
    5·2 answers
  • 5: What is the equation of the line parallel to x = 7, passing through the point (-4, 1)?
    13·1 answer
  • Eudora ran from her home to her secret laboratory at an average speed of 12 km/h. Then she then took one of her jetpacks and fle
    15·2 answers
  • Henry receives a flat rate of $100 per day and can earn a $2 commission for each computer repair (r) he performs. Yolanda receiv
    11·1 answer
  • Can someone please answer quick there’s a math test and I only have one minute to answer this question please it’s my last quest
    13·1 answer
  • A salesperson works 40 per week at a job where she has two options for being paid. Options a is an hourly wage if 21$. Option b
    6·1 answer
  • Help me please asap<br> i will make you brainliest
    14·1 answer
  • Please help for 20 points!! thank you if you help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!