Answer:
Step-by-step explanation:
A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side and red on the other side. One card is selected at random and you can see only one side.i) If the side you see is black, what is the probability that the other side is black?ii) If the side you see is black, what is the probability that the other side is red?
Given that:
Number of cards = 4
x = Black on both sides = 1
y = Red on both sides = 1
z = Black on one side, red on one side = 2
.i) If the side you see is black, what is the probability that the other side is black = b
Probability of black 
P(x) = 1/4 ; p(b|x) = 1 
P(y) = 1/4 ; p(y|x) = 
 
        
             
        
        
        
Answer: Option 'A' is correct.
Step-by-step explanation :
Since we have given that
Number of medals = 2
Number of runners = 8
We need to find the number of ways to award the medals.
We would use "fundamental theorem of counting" to find the number of ways.
So, number of ways is given by 
8 × 7 = 56
Hence, option 'A' is correct.
 
        
                    
             
        
        
        
Answer:
Greater than.
Step-by-step explanation:

 
        
                    
             
        
        
        
last one is the right answer
 
        
             
        
        
        
This is the answer (−1.550510257)