Each of the seven digits from the number 4929 889 is written

Each of the seven digits from the number 4,929, 889 is written on a different card. If a card is selected at random from the seven cards, what is the probability of drawing a card that shows 4 or 8? Write your answer using fraction in simplest form.

Since we have Total sample spcae as 7, and When selecting at random the probability of selecting any card is same

=> Selecting a card with 4 is 1/7 and selecting a card with 8 is 1/7 and 1/7