2 bags of corn chips + 8 bags of potato chips + 5 bags of ??? = 15 bags total 
2/ (5+8+2) = Probability 
 
 
        
        
        
Its 1 quattordecillion or 1(48 zeros that I don't want to type)
        
                    
             
        
        
        
Answer:
Answered and explained below
Step-by-step explanation:
A) We are told that frequency of the trait is still 1 in 8. Thus, population proportion; p = 1/8 = 0.125
Sample size; n = 150
Formula for mean is;
μ = np
μ = 150 × 0.125
μ = 18.75
Formula for standard deviation is;
σ = √(np(1 - p))
σ = √(150 × 0.125(1 - 0.125))
σ = √16.40625
σ = 4.05
B) usually, when np ≥ 10 , we make use of normal distribution.
I'm this case, it is 18.75 which is greater than 10.
Thus,we can use a normal model to approximate the distribution. 
C) we are told that he found the trait in 22 of the frogs. 
Thus;
Proportion is now; 22/150 = 0.1467
This is a higher probability that the initial one of 0.125 and we can say that the trait has become more common. 
 
        
             
        
        
        
Answer:
B. 0.835
Step-by-step explanation:
We can use the z-scores and the standard normal distribution to calculate this probability.
We have a normal distribution for the portfolio return, with mean 13.2 and standard deviation 18.9.
We have to calculate the probability that the portfolio's return in any given year is between -43.5 and 32.1.
Then, the z-scores for X=-43.5 and 32.1 are:

Then, the probability that the portfolio's return in any given year is between -43.5 and 32.1 is:

 
        
             
        
        
        
Answer:
C          or               D
Step-by-step explanation:
i would say C but if you get it wrong somehow, then it would be D