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
The sale price of the new car was $14,500. The sales tax rate was 6.5 percent. What was the sale tax on the car?
elixir [45]
$942.50.

$14,500 x 0.065 = $942.50

6.5% = 0.065
3 0
3 years ago
Which construction is illustrated above ?
RSB [31]

Answer:

Option 2.

Step-by-step explanation:

You are bisecting angle BAC  with pencil and compass.

3 0
3 years ago
Read 2 more answers
Rapper DaBaby drove at a speed of 45 mph in front of Coosa High School on his way home from North Carolina. What was his speed i
NeTakaya
To find the answer, set up an equation:
\frac{45 \: miles}{1 \: hour}  \times  \frac{1000 \: meters}{1 \: mile}  \times  \frac{1 \: hour}{3600 \: seconds}  =
Using this set up we can cross out the units that are on opposite sides of the proportion such as miles and hours, leaving us with the desired units of meters and seconds. Then calculate m/s by multiplying 45 by 1000 meters and then dividing that value by 3600 seconds.

The resulting answer is 45mph = 12.5 m/s
3 0
3 years ago
Read 2 more answers
Which is the most reasonable estimation for the weight of a kitten?
Zielflug [23.3K]
Depending on the age of the kitten they can weigh anywhere between 1 to 2 1/2 pounds or even 3 pounds if its a big kitten. Hope this answers your question!:)
6 0
2 years ago
Help I don’t understand
OverLord2011 [107]
Rotation about a point does not change any dimensions. C'D' = CD = 2.8 units.
8 0
3 years ago
Other questions:
  • jenna eats dinner at a restaurant. her bill is 14.50. jenna pays her bill and leaves a tip. write an inequality to represent the
    5·1 answer
  • Is my answer correct? if not please correct me
    11·1 answer
  • Find Area of the triangle
    7·1 answer
  • A radio station gave away concert tickets every hour yesterday. At the end of the fifth hour, the station had 418 tickets left.
    7·1 answer
  • Solve for x<br><br>An explanation would be great.
    6·2 answers
  • If someone could help me, it’d be great!
    8·1 answer
  • Nita needs at least $85 to buy a skateboard. She already has $61. Which graph best represents all the possible dollar amounts th
    8·2 answers
  • HELP PLEASE MATHEMATICS SIMPLIFY!!!!
    13·1 answer
  • COMPOUND INTEREST:
    15·1 answer
  • Help.... .................​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!