Answer:
d
Step-by-step explanation:
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Answer:
Zero(0)
Step-by-step explanation:
From the given information, we are to determine the probability that both ships are hit given that the pirate shoots first.
There are two scenarios
Since the pirate is to shoot first
- If the pirate misses, the Captain's ship is not hit. Therefore there's no chance of both ships getting hit.
- If the pirate hits, we are told that if his ship has been hit, Captain Daniel will always miss. Therefore there is also no chance of both ships getting hit.
P(both ships to be hit given that pirate shoots first) =0
 
        
             
        
        
        
95 is the better deal it’s only 35 more bucks and you get 150 more.
        
             
        
        
        
 4/5x-2>3/10*2x
4/5x-2>3/5x (3/10*2=3/5)
-2>-1/5x (subtract the 4/5x)
10<x (divide by -1/5 and change sign)
        
             
        
        
        
Solution :
Group   Before     After
Mean    693.75    743.75
Sd         155.37     143.92
SEM        54.93     50.88
n              8            8
Null hypothesis : The preparation course not effective.

Alternative hypothesis : The preparation course is effective in improving the exam scores.
 (after -  before)
  (after -  before)