Answer:
1/10
Explanation:
The probability an event will happen is the number of desired outcomes divided by the total number of possible outcomes.
The desired outcome is pulling out a 4. The number of desired outcomes is 1 since only 1 card contains the number 4.
The total number of possible outcomes is 10 since there are 10 different cards with numbers.
p(4) = 1/10
Answer: 1/10