Ask question

Ask question

All categories

3 years ago

10

How to find percentile rank

1 answer:

GuDViN [60]3 years ago

6 0

<span>See this formula in more detail in the Examples section. Formula: To find the percentile rank of a score, x, out of a set of n scores, where x is not included:Example: If Jason graduated 25th out of a class of 150 students, then 125 students were ranked below Jason.</span><span>

Percentiles - Regents Exam Prep Center is were i for my information for you

</span>

You might be interested in

Please help and show work

Nitella [24]

For the triangles to be congruent

x=y+5 .......(substitute in the second equation)

x+3=3y.........(y+5) + 3 = 3y , 2y = 8 ,

y = 4 , x = 9

3 0

3 years ago

Simplify (2 + 3)3 + 2 + 33

Brut [27]

(2+3)3+2+33

(5)3+2+33

15+2+33

50

4 0

4 years ago

Read 2 more answers

Irene is going to read a 216-page book. If she reads at a rate of 18 pages per day, how many days will it take her to read 1/3 o

Molodets [167]

It will take her 4 days to read 1/3 of the book.

The answer is 4.

3 0

4 years ago

Read 2 more answers

Use cubic regression to find a function that fits the following points.

olasank [31]

Answer:

The cubic regression that fits the points $(x,y) =(-2,-16)$ , $(x,y) = (1,5)$ , $(x,y) = (3, 59)$ and $(x,y) =(6,440)$ is $y =2\cdot x^{3}+x+2$ .

Step-by-step explanation:

A cubic polynomial is a polynomial that has the following form:

$y = a\cdot x^{3}+b\cdot x^{2}+c\cdot x + d$ (1)

Where:

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

$a$ , $b$ , $c$ , $d$ - Coefficients, dimensionless.

We construct the following system of equations to determine the coefficients of the cubic regression:

$(x,y) =(-2,-16)$

$-8\cdot a +4\cdot b -2\cdot c + d = -16$ (1)

$(x,y) = (1,5)$

$a+b+c+d= 5$ (2)

$(x,y) = (3, 59)$

$27\cdot a + 9\cdot b + 3\cdot c + d = 59$ (3)

$(x,y) =(6,440)$

$216\cdot a + 36\cdot b + 6\cdot c + d = 440$ (4)

The solution of the system of linear equations is:

$a = 2$ , $b = 0$ , $c = 1$ , $d = 2$

The cubic regression that fits the points $(x,y) =(-2,-16)$ , $(x,y) = (1,5)$ , $(x,y) = (3, 59)$ and $(x,y) =(6,440)$ is $y =2\cdot x^{3}+x+2$ .

7 0

3 years ago

If 52 cups of water were used in a Merry Berry Fruit Punch, how many cups of concentrate would also be used?

BigorU [14]

May I ask what the ratio is? *Comment it below this post and i'll help you!* <3

7 0

4 years ago