Answer:
This is not correct
Step-by-step explanation:
He could have rolled a 6 on the second roll without rolling a 6 on the first roll, the first roll had ZERO effect on the second one to be able to change what he would roll
 
        
                    
             
        
        
        
The experiment with the least number of trials.
 
Experimental probability is more accurate and more close to theoretical probability by having the most trials. More trials = more accuracy. Less trials = less accuracy.
        
             
        
        
        
Answer:

And we can use the probability mass function and we got:
 
 
And replacing we got:

Step-by-step explanation:
Let X the random variable of interest "number of graduates who enroll in college", on this case we now that:  
 
  
The probability mass function for the Binomial distribution is given as:  
 
  
Where (nCx) means combinatory and it's given by this formula:  
 
  
We want to find the following probability:

And we can use the complement rule and we got:

And we can use the probability mass function and we got:
 
 
And replacing we got:

 
        
             
        
        
        
H=(√3)*a/2 = 41.2
So, a=2*41.2/√3=47.6