Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271
<u>Using the binomial probability relation</u> : 
- P(x = x) = nCx * p^x * q^(n-x) 
- p = probability of success = 0.4
- q = 1 - p = 0.6
- n = number of trials = 100
P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)
<u>Using a binomial probability calculator</u> :
P(x ≥ 100) = 0.0271
Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271
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The answer is 
2x - 3 + 15 / 5x + 1
A is the answer
        
             
        
        
        
Answer:
Between the two sides
Step-by-step explanation:
No Man's Land was the land that separated the Allies and Axis powers in both World Wars.
 
        
                    
             
        
        
        
The answer is 92 or it can be 1A