Final answer:
The probability of getting a 10 or a jack from a deck of poker cards is 2/13.
Step-by-step explanation:
To find the probability of getting a 10 or a jack from a deck of 52 poker cards, we need to determine the total number of favorable outcomes and divide it by the total number of possible outcomes.
There are 4 jacks and 4 tens in a deck, so there are a total of 4 + 4 = 8 favorable outcomes. The total number of possible outcomes is 52, since there are 52 cards in a deck.
Therefore, the probability of getting a 10 or a jack is 8/52, which can be simplified to 2/13.