Question

Eight cards are marked 3, 4, 5, 6, 7, 8, 9, and 10 such that each card has exactly one of these numbers. A card is picked without looking. Find the probability that the card is an odd number that is greater than 4. Write your answer as a fraction, a decimal, and a percent.

52/100, 0.52, 52%

3/8 , 0.375, 37.5%

6/8, 0.75, 75%

4/8, 0.5, 50%

Answer 1

Answer: 3/8, 0.375, 37.5%

Explanation:

Count the number of cards with odd numbers that are greater than 4. 5, 7, and 9 are odd numbers greater than 4. There are 3 cards with odd numbers greater than 4. Probability is found by dividing this by the total number of cards, 8. This gets you a fraction of 3/8.