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
babunello [35]
3 years ago
7

Find the z-score corresponding to the given area. Remember, z is distributed as the standard normal distribution with mean of an

d standard deviation .
Mathematics
1 answer:
grigory [225]3 years ago
3 0

Answer:

Step-by-step explanation:

The z-score corresponding to a given area of a distribution, is the number of standard deviations that the values in that area have/are from the mean.

In this case, we have a STANDARD normal distribution. In a standard normal distribution, the mean is 0 and the standard deviation is 1.

The Z-score corresponding to a given area, say the 30th percentile is

X = 0 + (-0.524)(1)

Hence, the X (number of values in the given percentile - in this case, 30th) is same as the z-table or z-calculator value for the 30th percentile in ANY normal distribution.

You might be interested in
A wire that is 22 feet long connects the top of a pole to the ground. The wire is attached to the ground at a point that is 10 f
Ksju [112]

Answer:

19.6ft (nearest tenth)

Step-by-step explanation:

Please refer to the attached photo for better understanding.

Given Length of Wire = BC = 22ft

Given Distance from Grounded Wire to Base of Pole = AC = 10ft

Length of Pole = AB

We can use Pythagoras' Theorem to find Length of Pole, AB.

By Pythagoras' Theorem,

c^{2} =a^{2} +b^{2} \\BC^{2} =AB^{2} + AC^{2} \\22^{2} =AB^{2} +10^{2} \\484=AB^{2} +100\\AB^{2} =484-100\\AB=\sqrt{384} ft\\=19.6ft (nearest tenth)

6 0
2 years ago
On a spelling quiz, Lily got 16 out of 20 questions correct. Select all the expressions that show the ratio of Lily’s correct an
levacccp [35]

Answer:

E.

Step-by-step explanation: Unless you accidentally swapped the 5 and 4 around for D, then the answer is just E.

8 0
3 years ago
The two congruent angles in an isosceles triangle measure 3X + 10o and 5X - 16o . What value of X makes this relationship true?
aliya0001 [1]
So for this you need to set them equal to each other! 3x+100=5x-160
now you combine like terms and solve!
8 0
3 years ago
The exponential model A=429e 0.024t describes the​ population, A, of a country in​ millions, t years after 2003. Use the model t
d1i1m1o1n [39]

Answer:

Year 2,590

Step-by-step explanation:

In this question, we are asked to calculate the year at which the population of a country will be a certain amount given the exponential equation through which the equation proceeds.

Let’s rewrite the exponential function;

A = 429e^0.024t

Now here, our A is 559,000,000

t is unknown

Let’s substitute this value of A in the exponential equation;

559,000,000 = 429 * e^0.024t

559,000,000/429 = e^0.024t

1,303,030.303030303 = e^0.024t

Let’s take the logarithm of both sides to base e, we have;

ln(1,303,030.303030303) = ln(e^0.024t)

14.08 = 0.024t

t = 14.08/0.024

t = 587 years

Now, we add this to year 2003 and this gives year 2590

7 0
4 years ago
A box contains 1 4/5 pounds of pasta. How many ounces of pasta are<br> in the box
Scorpion4ik [409]

Answer: 1 4/5 pounds is equal to 28.8 ounces

Step-by-step explanation:

1 pound is equal to 16 ounces.

6 0
2 years ago
Other questions:
  • Compare. Use &lt;,&gt;, or = to complete the statement
    7·1 answer
  • the annual interest on an 18,000 investment exceeds the interest earned on a 9000 investment by 648. the 18,000 is invested at a
    5·1 answer
  • What is 4 5ths of 30?
    12·1 answer
  • If point Q is translated to the right and 2 units up , what are the coordinates of Q
    13·1 answer
  • What is the perimeter, P, of a rectangle that has a length of (x + 8) and a width of (x − 1)? Show all work.
    13·1 answer
  • .....................................................
    5·1 answer
  • Hhhhhhhhhheeeeeeelllllllllllppppppppp
    13·1 answer
  • Find the missing length indicated..
    9·1 answer
  • 3. What is the distance between -49 and 167?
    5·2 answers
  • Jon earns $3 for every package he wraps. To take a package to the post office, Jon earns 1.65 times as much as he earns for wrap
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!