Answer: 0.1797
Step-by-step explanation:
Given : 
Let x be the random variable that represents BMI for adults in this country.
We assume that BMI for adults in this country is normally distributed.
Then, z-score for x=25.6 ,
Using z-value table , we have
The probability that the person's BMI is more than 25.6 :
Hence, the probability that the person's BMI is more than 25.6 = 0.1797
Hence, the probability that the person's BMI is more than 25.6 = 0.1796
Hence, the probability of the stick's weight being 2.23 oz or greater = 0.0174
Answer:
d. can be equal to the value of the coefficient of determination (r2).
True on the special case when r =1 we have that 
Step-by-step explanation:
We need to remember that the correlation coefficient is a measure to analyze the goodness of fit for a model and is given by:
![r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Bn%28%5Csum%20xy%29-%28%5Csum%20x%29%28%5Csum%20y%29%7D%7B%5Csqrt%7B%5Bn%5Csum%20x%5E2%20-%28%5Csum%20x%29%5E2%5D%5Bn%5Csum%20y%5E2%20-%28%5Csum%20y%29%5E2%5D%7D%7D)
The determination coefficient is given by 
Let's analyze one by one the possible options:
a. can never be equal to the value of the coefficient of determination (r2).
False if r = 1 then
b. is always larger than the value of the coefficient of determination (r2).
False not always if r= 1 we have that 
and we don't satisfy the condition
c. is always smaller than the value of the coefficient of determination (r2).
False again if r =1 then we have and we don't satisfy the condition
d. can be equal to the value of the coefficient of determination (r2).
True on the special case when r =1 we have that
Answer:
z = 9
Step-by-step explanation:
36/4 = 9
Answer:
Requested number is 36
Step-by-step explanation:
The first equation is as given t + u = 9
The second equation is t = (1/2)u => u = 2t
When we replace this in first equation we get:
t + 2t = 9 => 3t = 9 => t = 9/3 = 3
When we replace again in the
u = 2 t = 2 · 3 = 6
The requested number is 36
God with you!!!
6s² = 294
s² = 294/6
s² = 49
s = √49
s = 7 <span>meters</span>
