Answer: 
Step-by-step explanation:
Given: Number of cards in a standard deck = 52
If we already chosen a diamond card, then the number of cards left in the deck =52-1=51
The number of spades remains same = 13
Now, the probability that you choose a spade, given that you have already chosen a diamond is given by :-

Hence, the the probability that you choose a spade, given that you have already chosen a diamond 
Answer:
Y = - 2/3x + 1
Step-by-step explanation:
-2/3 = rise/run = slope
+1 = y intercept
Answer:
2%
Step-by-step explanation:
Answer:
r = -2
Step-by-step explanation:
2+2 = 4
7-3 = 4
4/4 = 1
m = 1