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
Tasya [4]
3 years ago
5

z scores are useful because they:a. allow us to convert raw scores to mean scores, compare scores from different samples, and tr

ansform populations into samples.b. transform linear scores into nonlinear scores, convert nonlinear scores back into linear scores, and allow us to obtain comparisons between nonlinear and linear scores.c. give us an understanding of where a score falls in relation to the mean of its underlying population, allow comparisons to be made between scores from different distributions, and permit the transformation of z scores into percentiles.d. reduce the probability of Type I and Type II errors, allow us to compare raw scores with standard scores, and permit the transformation of raw scores into percentiles.
Mathematics
1 answer:
Alla [95]3 years ago
3 0

Answer:

they give us a sense of where a score falls in relation to the mean of its population (in terms of standard deviation of its population), 2) they allow us to compare scores from different distributions, and 3) they can be transformed into percentiles.

Step-by-step explanation:

You might be interested in
1/5 (5x +12) =18 solve for x
Igoryamba

Answer:

I think its 1

Step-by-step explanation:

6 0
3 years ago
Give the components of the velocity vector for wind blowing at 12 km/hr toward the southeast. (Assume north is the positive y-di
svp [43]

Answer:

\overline{V_x} = 6\sqrt{2}\\\overline{V_y} = -6\sqrt{2}

components can be written as:

\overline{V} = 6\sqrt{2}\,\hat{i}-6\sqrt{2}\,\hat{j}

Step-by-step explanation:

The components of a velocity vector at any direction can be thought of separate vectors in 'i' and 'j' directions respectively. These vectors can be added to make the resultant velocity vector.

In our case the magnitude is provided:

|\overline{V}|= 12

the direction is provided to be southeast:

\theta = 45

\theta  is measured from positive x-axis clockwise towards the 4th quadrant. it is important to know that quadrant since the signs of the components will be where x is positive and y is negative as the direction is south east (+x,-y).

the components of the velocity will be:

\overline{V_x} = 12\cos{(45)} = 12\dfrac{\sqrt{2}}{2} = 6\sqrt{2}\\\overline{V_y} = -12\sin{(45)} = -12\dfrac{\sqrt{2}}{2} = -6\sqrt{2}\\

So that:

\overline{V} = \overline{V_x}\hat{i}+\overline{V_x}\hat{j}

\overline{V} = 6\sqrt{2}\,\hat{i}-6\sqrt{2}\,\hat{j}

This can be checked using since we know that magnitude of the above vector should be 12.

|\overline{V}| = \sqrt{(12\cos{\theta})^2+(12\sin{\theta})^2}

|\overline{V}| = \sqrt{(6\sqrt{2})^2+(-6\sqrt{2})^2}\\|\overline{V}| = \sqrt{36(2)+36(2)}\\|\overline{V}| = \sqrt{144} = 12\\

3 0
3 years ago
What is the polynomial -x^(2)-(1)/(2)+x
liq [111]

Answer:

trinomial

Step-by-step explanation:

-x² - 1/2 + x

if you are asking for the specific name, it is a trinomial because there are 3 terms.

6 0
3 years ago
John found a pair of jeans that cost 45$ .if it had a 10% -off coupon .how much would the jeans cost
8_murik_8 [283]
If he paid $45 for the pants and they were 10% off then the original price of the pants was $50. However if you meant that the original price is $45 (more likely based on your wording) the new price would be $40.50.
6 0
3 years ago
Martin is making squares by arranging 26 sticks. how many squares can he make?
MA_775_DIABLO [31]
5
because 5*5 = 25 
that would mean equal squares
btw im just guessing

3 0
4 years ago
Other questions:
  • A conundrum is an inspirational poem. true or false
    8·1 answer
  • The difference between 2times r and 3 times the square root of t express algebraically
    10·1 answer
  • What is the area of a rectangle with vertices at ​ (−4, 0) ​, ​ (−3, 1) ​ , (0, −2) , and (−1, −3) ?
    5·1 answer
  • The volume of a sphere whose diameter is 18 centimeters is
    8·1 answer
  • In our school, 3/5 of the student body have brown eyes. If there are 350
    7·1 answer
  • HELP MEEEEEE!!!!!!
    7·1 answer
  • QUESTION 8 of 10: Juanita, the stadium manager, spends $10,000 on a broadcast TV ad, $15,000 on a cable TV ad, and $4,000 on a r
    15·1 answer
  • Find the value of x.
    13·1 answer
  • What are the coordinates of the vertices of a rectangle with an perimeter of 12 units and an area of 5 sq. units.
    6·1 answer
  • Let h = number of hours to bike 165 mi. Let m = number of miles biked in 7 hr. Which proportion can be used to determine the val
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!