Answer:
Mean=8.8, Median=8
Step-by-step explanation:
How to find the mean:
First, add all the #'s up. 4+9+12+14+7+7=53
Then divide that by the number or numbers. In this case it is 6.
53/6=8.833... So rounded=8.8
Median:
List numbers lowest to highest
4, 7, 7, 9, 12, 14
Go to the middle number.
Since it is between 7 and 9, it is 7+9=16. 16/2=8
8 is the median
 
        
             
        
        
        
Answer:
Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.
Step-by-step explanation:
We use the central limit theorem to solve this question.
The Central Limit Theorem estabilishes that, for a random variable X, with mean  and standard deviation
 and standard deviation  , a sample size larger than 30 can be approximated to a normal distribution with mean
, a sample size larger than 30 can be approximated to a normal distribution with mean  and standard deviation
 and standard deviation 
So
Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.
 
        
             
        
        
        
Answer:
4^10
subtract 15-5 and leave the 14 be
 
        
                    
             
        
        
        
Given parameters: 
         1.         
  
  
           ; find the LCM = 8
; find the LCM = 8
   
              =     
        
              =      
 
     
        2.    
  
             Make the fraction decimal; 
               = -2.4
   = -2.4
             So; 
                         -2.4 + 15.3  = 12.9   
 
        
             
        
        
        
The answer is c.261 you add 13 and16 together then multiply that number by9