If a fair six-sided die is rolled once, what is the probability of rolling a number greater than 4?

What is the mean of the numbers 5, 10, 15, and 20?

A jar contains 3 red, 5 blue, and 2 green marbles. What is the probability of randomly drawing a blue marble from the jar?

If a coin is flipped twice, what is the probability of getting two heads?

In a school survey, 60% of students said they prefer online classes. If there are 200 students, how many students prefer online classes?

A bag contains 4 apples, 3 bananas, and 3 oranges. What is the probability of picking an apple at random?

A spinner is divided into 4 equal sections numbered 1 to 4. What is the probability that the spinner lands on an even number?

In a class, there are twice as many girls as boys. If there are 18 girls, how many students are there in total?

What is the median of the following numbers: 7, 3, 9, 5, 8?

A deck of cards contains 52 cards. What is the probability of drawing an Ace?