Answer:
The binomial probability formula can not be used for this experiment because it does not state the number of times he expects to draw his favorite suit.  
Step-by-step explanation:
The binomial probability formula is expressed as follows: 
P (k success in n trials) =  
 

n = number of trials, k = number of successes, n-k = number of failures, p = probability of success in one trial and q = 1 - p = probability of failure in one trial.  
In the given problem, all of the variables are known except for 'k', the amount of times that the student predicts he will draw his favorite suit.  
 
        
             
        
        
        
-2,2 is the answer hoped it helped :)
        
             
        
        
        
Power and chain rule (where the power rule kicks in because  ):
):

Simplify the leading term as

Quotient rule:

Chain rule:


Put everything together and simplify:







 
        
             
        
        
        
Answer:
-6 k +5
Step-by-step explanation:
-2k -4k +5
Think of k is apples
-2 apples -4 apples
-6 apples
-6 k +5