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
Select equivalent or nonequivalent for each pair of expressions
wel

Answer:

i think the answer is a as well <3

have a great day!

also wdym by i smell pennies??

6 0
2 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Harrizon [31]
180-53 is 127 angle 6 and 3 would be the same so your answer is 127
3 0
2 years ago
Please answer this question.
Kaylis [27]
Combine the like terms
-x-x^2+7
4 0
3 years ago
Distributive property 3(x-1)=3x-
user100 [1]
The answer is 3x-3. You have to distribute the 3 to both of the variables in the equations. The 1 in the parentheses is a negative and multiplying the 3 will result in a negative 3.
5 0
2 years ago
the local farm sell a 4 pound basket of apples for 5.60 each apple weighs 4 ounces. what is the price per apples
valina [46]
Because there are 16 ounces in a pound, we can multiply 16 by 4 to get 64, there are 64 ounces of apples which is also the same as 4 pounds of apples. If 64 ounces of apples equals $5.60, and each apple is 4 ounces, we have to also divide 64 by 4 to find the number of apples. 64 divided by 4 is 16, so 16 apples for $5.60. To get the price PER apple, or for one apple, we have divide $5.60 by 16, which will give us $0.35, or $.35 per apple, which is actually a good price.
4 0
3 years ago
Other questions:
  • How many times greater is the value of the digit 6 in 659,451 than the value of the digit 6 in 751,632?
    11·1 answer
  • The value of x!!!!!!!!!!!!!!!!
    5·1 answer
  • Describe how you would compare 3.6 and <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B12%7D%20" id="TexFormula1" title=" \sq
    9·2 answers
  • Solve:
    8·1 answer
  • What amount of sugar does Travis need to put into the mix to have the same ratio of sugar to butter that the original recipe cal
    7·1 answer
  • Which set of angle measures could be the
    5·2 answers
  • What is th rate equivalent to an annual rate of 20% with monthly capitalization​
    8·1 answer
  • Carlos finished 5/8 of his art project. Tyler finished 7/8 of his project on Monday. Who finished more of his art project on Mon
    13·1 answer
  • I need help would really appreciate it ASAP
    8·1 answer
  • Alex is comparing two mortgage opportunities for his potential $120,000 mortgage. Mortgage A: 15 years at 5% with monthly paymen
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!