Answer:0.0081  or 0.81%
Step-by-step explanation:
The required probability is P(3,5,0.1)= C5 3 * p^3*q^2, where
C5 3=  5!/3/2=4*5/2=10
p is the probability that one randomly selected calculator is defective= 10%=0.1
q is the probability that one randomly selected calculator is non-defective.
q=1-p=1-0.1=0.9
So P(3,5,0.1)= 10*0.1^3*0.9^2=0.01*0.81=0.0081
 
        
             
        
        
        
Answer:
B. X=7
Step-by-step explanation:
Because 9 greater than 7
 
        
             
        
        
        
It’s graph must go through the origin ?