Calculating Probability

There are 3 red balls out of 5 total balls. So, the probability of drawing a red ball is $\frac{3}{5}$ or 60%.

There are 9 blue balls out of 12, so the probability of drawing a blue ball is $\frac{9}{12}$, which simplifies to $\frac{3}{4}$ or 75%.

The total number of marbles is $6+8+10=24$. The probability of drawing a green marble is $\frac{8}{24}$, which simplifies to $\frac{1}{3}$.

There are two numbers greater than 4 on a six-sided die: 5 and 6. Therefore, the probability is $\frac{2}{6}$, which simplifies to $\frac{1}{3}$.

The experimental probability of drawing a red marble is $\frac{150}{500}$. Dividing both the numerator and denominator by 50 gives $\frac{3}{10}$.

The outcome of flipping a fair coin 10 times is random, so there is no guarantee that exactly half of the flips will be heads and half tails. Other outcomes are possible.