Answer:
Cantidad de aprobados= 25
Step-by-step explanation:
Dada la siguiente información:
Reproado= 45%
Aprobado= 55%
Cantidad de alumnos= 45 alumnos
<u>Para calcular la cantidad de aprobados, debemos utiliar la siguiente formula:</u>
<u />
Cantidad de aprobados= cantidad de alumnos*porcentaje aprobados
Cantidad de aprobados= 45*0.55
Cantidad de aprobados= 25
Answer:
y = 0.325X + 7.5 ;
21.5 ;
R^2 = 0.7655 ;
r = 0.8749
Step-by-step explanation:
No. of loans originated ____ sheets of p/paper
45 ______________22
25 ______________ 13
50 _____________ 24
60 _____________ 25
40 _____________ 21
25 _____________ 16
35 _____________ 18
40 _____________ 25
Using the linear regression calculator : the linear model obtained is:
y = 0.325X + 7.5
y = predicted variable = sheets of photocopy paper
X = number of loans originated
0.325 = slope
Intercept = 7.5
B.)
X = 42
y = 0.325(42) + 7.5
y = 21.15
C.)
The Coefficient of determination as determined using the correlation coefficient calculator is :
R^2 = 0.7655 ; this means that about 76.55% of change in number of photocopy performed is explained by the number of loans originated.
D.) The correlation Coefficient (r) :
r = sqrt(R²)
r = sqrt(0.7655)
r = 0.8749
This shows that a strong positive correlation exists between the number of loans originated and the volume of photocopying done.
I guess it is none, because if you multiply all these options by 7.5, you will not get 32. However, option C multiplied with 7.5 does get you 32.4, which rounds to 32, so my advice to be to answer with C. $4.32
B because the center of data is best measured by the median when there are outliers, and 42 is an outlier in this set.
Answer:
b
Step-by-step explanation:
-2xa ×-4xb=8xa+b
-2xa×-2x3=4xa+3
-2xa×5x=10xa+1