Answer:
0.5%
Step-by-step explanation:
That percentage would be:
  8 people
--------------------- = (1/200) = 0.005  multiplied by 100% yields 0.5%
  1600 people
 
        
             
        
        
        
Answer:
Solution Let E1 be the event that coin 1 is selected and E2 the event that coin 2 is selected. Let F be the event that exactly 7 of the 10 flips lands on heads, let G be the event that the fist flip is heads. 
 
        
             
        
        
        
The formula of combination is 

We have 

 and 


Hence, there are 1001 ways of arranging 10 records from 14 records 
 
        
        
        
Answer:
4000
Step-by-step explanation:
from 1 - 1000 = 300
1's    = 100
10's  = 100
100's = 100
1000's = 0 
300 * 10 = 3000
then add in all the 3000's (ie 3001,3002, etc ) that adds one more thousand
3000 + 1000 = 4000
 
        
             
        
        
        
Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Find z-score:</u>
- z = (x - μ)/σ
- z = (104 - 80)/12 = 2
Percent value corresponding to 2 as per z-table is 0.9772. This is corresponding to 97.72%.
<u>Percentage of students earned more than $104:</u>