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
sveticcg [70]
1 year ago
10

SAT scores are normally distributed, with a mean of 500 points and a

Mathematics
1 answer:
babymother [125]1 year ago
8 0

Recalling that SAT scores are always expressed as multiples of 10, then the points we get on the test will be 628.

<h3>What do you mean by standard deviation?</h3>

In statistics, Standard deviation is a measure of the variation of a set of values.

σ = standard deviation of population

N = number of observation of population

X = mean

μ = population mean

WE have been given that SAT scores are normally distributed, with a mean of 500 points and a standard deviation of 100 points.

The solution as follows;

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

Recalling that SAT scores are always expressed as multiples of 10, then the points we get on the test will be 628.

Learn more about standard deviation and variance:

brainly.com/question/11448982

#SPJ1

You might be interested in
PLEASE ANSWER BOTH QUICK
Pavlova-9 [17]

Answer:

1.C

2.A

Step-by-step explanation:

dude trust me

3 0
3 years ago
The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured 200 m st
aleksklad [387]

Answer:

Speed of Chris Huber = 30.726 m/s

Time taken by Sam = 5.55 s

Step-by-step explanation:

Given:

Distance = 200 m

Time taken by Chris Huber = 6.509 s

Now,

Speed of Chris Huber = \frac{\textup{Distance}}{\textup{Time}}

or

Speed of Chris Huber = \frac{\textup{200 m}}{\textup{6.509 s}}

or

Speed of Chris Huber = 30.726 m/s

Speed of Sam = Speed of Chris Huber + 19.0 km/h

Now,

1 km/hr = 0.277778 m/s

thus,

19.0 km/h = 19.0 × 0.27 = 5.278 m/s

thus,

Speed of Sam = 30.726 + 5.278 = 36.004 m/s

therefore,

Time taken by Sam = \frac{\textup{Distance}}{\textup{Speed}}

or

Time taken by Sam = \frac{\textup{200}}{\textup{36.004}} = 5.55 s

6 0
2 years ago
2. A train first travels east for 20 kilometers. Then it turns north and travels for 43 kilometers. Next it goes west for 20 kil
andrey2020 [161]

Answer:

idk sorry

Step-by-step explanation:

3 0
3 years ago
What is -(2×7)+(4g×9a)
kotykmax [81]
I think its 162 but i dont know so hope this helps sorry if it dont
4 0
3 years ago
How much should Jordan budget monthly for an annual expenditure that coast $614.66? *<br> TIMED!
poizon [28]

Answer:

he should budget about $51.22

Step-by-step explanation:

annual mean one year since there is 12 months in a year you would want to divide 12 to $614.66

6 0
3 years ago
Read 2 more answers
Other questions:
  • (2/3 * 2/3)(1/2 * 1/2) <br> (2/3 * 2/3)(1/2 * 1/2) in fraction form
    8·2 answers
  • What is the answer...to this question or what do I have to do???
    13·2 answers
  • How many sides does a polygon have if the sum of its interior angles is 1,260º?
    8·1 answer
  • Use the grouping method to factor this polynomial completely.<br> 483 + 8x2 + 3x + 6
    10·1 answer
  • If i get a 98 on a test that is worth 25% of my grade what is my grade? (my grade right now is a 76) . 30 points !
    8·1 answer
  • (x/2 + bb) 10 x=7 b=2
    9·1 answer
  • (tan theta+sec theta-1)/(tan theta-sec theta+1)=sec theta+tan theta
    7·1 answer
  • 3.
    15·2 answers
  • Need help quick! Will give brainliest to first right answer.
    12·1 answer
  • What are the terms in the expression 13y + 4p + 11?<br> A.17y + P<br> B.13y, 4p, 11<br> C.13, 4, 11
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!