What is the probability of drawing a diamond from a standard deck of cards on a second draw, given that a diamond was drawn on the first draw and replaced?

one over thirteen
one over four
twelve over fifty one
one over fifty two

someone me. you.

This problem is all about probability. It is the study of predicting the likelihood or chances of a certain event to happen out of all the possibilities. It is always expressed as a part of a whole. Therefore, the answer is either in fraction or in percentage. 

A standard deck of card consists of 52 cards all in all. There are 13 diamond cards within the deck. So, the probability of getting a diamond card is 1/52. But we are given with a conditional probability. The first draw is sure to pick a diamond. So, the probability for this is 1 or 100%. But we should multiply this to the second scenario which is the 2nd draw. If you picked a card already, that means the total number of cards is 52 less 1. Also, because you already picked a diamond in the first draw, the diamond cards left in the deck is 13 less 1. Therefore, the probability of getting a diamond card in the second draw is

Probability = 1 × 12/51
Probability = 12/51

4x - 36

Step-by-step explanation:

4 * x = 4x

4 * -9 = - 36