Answer:
0.066
Step-by-step explanation:
We solve this question using z score formula
z = (x-μ)/σ, where
 x is the raw score
 μ is the population mean
σ is the population standard deviation
For the question
 mean birth weight for boys is 3.27 kg, with a standard deviation of 0.51 kg.
x = 2.5
Hence:
z = 2.5 - 3.27/0.51
z = -1.5098
Probability value from Z-Table:
P(x ≤ 2.5) =P(x < 2.5) = P(x = 2.5) = 
=0.065547
Therefore, the proportion of baby boys that are born with a low birth weight is 0.066
 
        
             
        
        
        
Answer:
152
Step-by-step explanation:
3(11)= 33
4(33+5)
4(33)=132
4(5)=20
132+20=152
 
        
             
        
        
        
Answer:
Area: 40 
Step-by-step explanation:
To find the area of a parallelogram you multiply the base times the height, or the length times the height. This is why you multiply 5x8 to get 40. The substitution could be 5 x 8 = X 
X is the area.
 
        
             
        
        
        
Answer:
Thanks for asking!
Step-by-step explanation:
The answer is -x²+9+12
 
        
             
        
        
        
Answer:
Maybe make a  Y_O_U_T_U_B_E channel 
Step-by-step explanation: