find the probability of choosing a queen or a diamond from a standard deck of 52 cards

http://davidmlane.com/hyperstat/A136602.html

3 + 13 = 16

Take it from there.

careful !

sorry, 4/13

To find the probability of choosing a queen or a diamond from a standard deck of 52 cards, we need to determine the total number of favorable outcomes and the total number of possible outcomes.

There are 4 queens in a deck of 52 cards, and there are 13 diamonds in a deck. However, one of the queens, the Queen of Diamonds, is both a queen and a diamond. So, to avoid counting it twice, we need to subtract it from our count.

The favorable outcomes are then the 4 queens (excluding the Queen of Diamonds) and the remaining 12 diamonds. Hence, the total number of favorable outcomes is 4 + 12 = 16.

The total number of possible outcomes in a deck of 52 cards is 52 because each card is unique.

Therefore, the probability of choosing a queen or a diamond is 16/52, which reduces to 4/13.

Hence, the probability of choosing a queen or a diamond from a standard deck of 52 cards is 4/13.