4/5 x 2= 8/5
Which is 1 3/5 cups needed for 2 pies 
        
                    
             
        
        
        
Nvm disregard or delete this... wrong answer
        
                    
             
        
        
        
Answer:
a). The mean = 1000
      The variance = 999,000
      The standard deviation = 999.4999
b). 1000 times , loss
Step-by-step explanation:
The mean of geometric distribution is given as , 
And the variance is given by, 
Given : 
              = 0.001
The formulae of mean and variance are :



a). Mean =   
               =  
 
               = 1000
   Variance =   
                   = 
                            = 999,000
    The standard deviation is determined by the root of the variance.
     
         =  = 999.4999
 = 999.4999
b). We expect to have play lottery 1000  times to win, because the mean in part (a) is 1000. 
When we win the profit is 500 - 1 = 499
 When we lose, the profit is -1
Expected value of the mean μ is the summation of a product of each of the possibility x with the probability P(x).

   = $ 0.50
Since the answer is negative, we are expected to make a loss.
 
        
             
        
        
        
Add 5
y is found by adding 5 to x
        
             
        
        
        
No . because you would then have 2/4 which is 1/2 50%