Step-by-step explanation:
1. 
multiply 

do both the numerator and denominater

 
        
             
        
        
        
Answer:
d. each trial has exactly two outcomes whose probabilities do not change
Step-by-step explanation:
A binomial experiment is one where there are exactly two outcomes for each trial and probability for getting success is constant in each trial.
In other words, each trial is independent of the other.
The trials need not be continuous nor time between trials to be constant.
Since trials are to be independent, each trial cannot influence the next.
Only option d is right.
d. each trial has exactly two outcomes whose probabilities do not change
Examples are tossing of coins, throwing dice, drawing cards or balls with replacement, etc
 
        
             
        
        
        
If 200/8=25 per hour, then i divided that by 2 to get 12.5 for 30 minutes.
        
             
        
        
        
Answer: option a
Step-by-step explanation:
 You must apply the formula for calculate the distance between the two points. which is shown below:
 
 Therefore, keeping on mind that the points given in the problem are (6, 11), (0, 3), when you substitute values into the formula shown above, you obtain that the distance between these two points is the following:
