Answer:
hmmmm bilmim weantremlo ?
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The margin of error is computed using the formula:

The critical of <em>z</em> for 95% confidence level and 90% confidence level are:

*Use a <em>z</em>-table.
The sample size is n = 44.
Compare the MOE for 95% confidence level and 90% confidence level as follows:


 
        
             
        
        
        
The answer is 4/9
Have a great day!!
        
             
        
        
        
Answer:
P(A and B) is greater than 1 is never happened ⇒ C
Step-by-step explanation:
Two events are independent if the result of the second event is not  affected by the result of the first event
If A and B are independent events, the probability of both events  is the product of the probabilities of the both events  P (A and B) = P(A) · P(B)
∵ The probability of any event is less than 1
∵ P(A) < 1
∵ P(A) > 
- That means P(A) is greater than half and less than 1
∴  < P(A) < 1
 < P(A) < 1
∵ P(B) < 1
∵ P(B) > 
- That means P(B) is greater than half and less than 1
∴  < P(B) < 1
 < P(B) < 1
∵ P(A and B) = P(A) . P(B)
- Remember the product of any fractions less than 1 is less than 1
∴  < P(A) . P(B) < 1
 < P(A) . P(B) < 1
- That means any expression equals to P(A) . P(B) must be greater
    than  and less than 1
 and less than 1
∴  < P(A and B) < 1
 < P(A and B) < 1
∴ P(A and B) is greater than 1 is never happened
 
        
             
        
        
        
You have to add and divide for the mean(average) so add all of them up and then divide by 3 :)