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
Vladimir79 [104]
3 years ago
8

Assume that adults have IQ scores that are normally distributed with a mean of 96.296.2 and a standard deviation 20.520.5. Find

the first quartile Upper Q 1Q1​, which is the IQ score separating the bottom​ 25% from the top​ 75%.
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

The first quartile of the IQ scores of adults is 82.26.

Step-by-step explanation:

The first quartile is the value that is greater than 25% of the observations and less than 75% of the observation.

The formula to compute the first quartile (Q₁) of a Normal distribution is:

Q_{1}=\mu-0.68\sigma

The mean and standard deviation of the IQ scores of adults are:

\mu=96.2\\\sigma=20.5

Compute the first quartile value as follows:

Q_{1}=\mu-0.68\sigma=96.2-(0.68\times20.5)=82.26

Thus, the first quartile of the IQ scores of adults is 82.26.

You might be interested in
Josephine decided to get this Platinum card since she saw the ads touting the "0% A.P.R. Platinum. Sign Up
agasfer [191]

Answer: A. Her A.P.R will change after six months and be between 15.24% to 23.24% assuming that she has been making on-time payments during those first six months.

Step-by-step explanation:

8 0
3 years ago
Estimate 1.9 x 4.4
Lelechka [254]

Answer:

A

Step-by-step explanation:

1.9 about 2, and 4.4 is about 4.

2x4=8

So it is safe to say between 4 and 10.

3 0
3 years ago
Linda scored 3 points more than twice Lisa's points on a driver's ed test. Lisa scored p points.
Flura [38]
Ok so what I would do Is I would do 3 x p=m 
3 0
3 years ago
Solve for x. Show your work. <br> - 1/2x &lt; -12
frozen [14]
<span><span><span>−1</span><span>2x</span></span>=<span>−12</span></span><span><span>−1</span>=<span>−<span>24x</span></span></span>(Multiply both sides by 2x)<span><span>−<span>24x</span></span>=<span>−1</span></span>(Flip the equation)<span><span><span>−<span>24x</span></span><span>−24</span></span>=<span><span>−1</span><span>−24</span></span></span>(Divide both sides by -24)<span>x=<span>1<span>24

AND OMG MY CHEMICAL ROMANCE AS YOU PFP!!!!</span></span></span>
3 0
3 years ago
Read 2 more answers
Consider the absolute value
ICE Princess25 [194]

Answer:

Step-by-step explanation:

f(x) = - | x + 2 | + 2

The vertex of the function is a <em>max of the function</em> at <em>( - 2 , 2 )</em>

7 0
2 years ago
Other questions:
  • A lizard needs to stay a safe distance from a cactus. The diameter of the cactus is 12 inches. If the lizard is 8 inches from a
    13·1 answer
  • A father is 60 years old and his son is half his age. How old was the boy when his father was four times his age?
    6·2 answers
  • Graph the system of inequalities. Then use your graph to identify the point that represents a solution to the system.
    15·1 answer
  • I need help with these 2 questions i don’t understand!
    10·2 answers
  • Can somebody please explain and answer this for me? I really don't get it.
    11·1 answer
  • How do you solve:<br><br> f(x)=In(3x)?
    8·1 answer
  • HElP DUE IN 15 MIN<br><br> x =
    8·1 answer
  • What is the probability of rolling a six-sided number cube and getting an odd number or a number less than 4?
    12·1 answer
  • The quotient of a number and thirty-six is one-nineth
    10·1 answer
  • Solve for x<br> *<br> 105⁰<br> X+35⁰<br> X+250 S<br> 120°<br> R
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!