Answer:
a) 1st and 2nd
b) 4th one
Step-by-step explanation:
 
        
                    
             
        
        
        
-9/5 or -1.8
2 - - 3 = 5
-5 - 4 = -9
        
                    
             
        
        
        
A binomial probability density function should be used to represent the probability 
<h3>How to determine the type of 
probability density?</h3>
The given parameters are:
- Proportion that plays sport, p = 32%
 - Number of students selected, p = 50
 - The probability, P = (x ≤ 15)
 
The proportion that plays sport indicates that
68% of the students do not play sport
So, we have two events, which are
- Play sport 
 - Do not play sport 
 
When there are two possible events, then the binomial probability density function should be used 
Read more about binomial probability density at:
brainly.com/question/15246027
#SPJ1
 
        
             
        
        
        
Answer:
3/40
Step-by-step explanation:
Multiply 1/5 * 3/8
 
        
             
        
        
        
Answer:
It is reasonable.
Step-by-step explanation:
If you add 468 (amount of animals already there) and add how ever many more coming (192) then you'll get 680. If you add 100 more that will only be 780 animals.