Probability and Chance

If you flip a coin, what are the chances it will land on heads?

• equally likely

• will not happen

• less likely

• more likely

Answer explanation

When flipping a fair coin, there are two possible outcomes: heads or tails. Each outcome has an equal probability of occurring, making the chances of landing on heads equally likely.

If you have a bag with 3 red balls and 1 blue ball, what color is more likely to be picked?

• Red

• Yellow

• Black

• Green

Answer explanation

In the bag, there are 3 red balls and 1 blue ball. Since there are more red balls, it is more likely to pick a red ball compared to any other color. Yellow, black, and green are not present, making red the only likely choice.

If you have 4 apples and 1 orange, what is the chance of picking an apple?

• less likely

• equally likely

• more likely

• will not happen

Answer explanation

You have 4 apples and 1 orange. Apples is more than orange. So it is more likely to get apple than orange.

Is it equally likely to roll a 1 or a 2 on a die? Why?

• Yes, It is more likely to roll a 1 than a 2.

• No, You can only roll even numbers on a die.

• Yes, it is equally likely to roll a 1 or a 2 on a die.

• No, Rolling a 1 will not happen on a die.

Answer explanation

Yes, it is equally likely to roll a 1 or a 2 on a six-sided die. When you roll it, each number has an equal chance of showing up because there is only 1 side for each number. So, the chance of rolling a 1 or a 2 is the same as rolling any of the other numbers

If you have a spinner with 2 equal sections, what is the chance it will land on green if there are no green sections?

• more likely

• equally likely

• less likely

• Will not happen

Answer explanation

Since there are no green sections on the spinner, the chance of landing on green will not happen.

Which is more likely:
getting a 5 on a die or getting a number less than 3?

• Getting a number less than 3 is more likely.

• Getting a 5 on a die is more likely.

• Getting a number greater than 3 is more likely.

• Both outcomes are equally likely.

Answer explanation

A number less than 3 means you can roll a 1 or a 2, so there are 2 chances. Rolling a 5 gives you only 1 chance.

Since 2 chances are more than 1, it is more likely to roll a number less than 3.

If you have 2 blue marbles and 3 green marbles, which color is less likely to be picked?

• Blue

• Purple

• Red

• Yellow

Answer explanation

You have 2 blue marbles and 3 green marbles. Since there are fewer blue marbles, it is less likely to pick a blue marble compared to a green one. Therefore, the correct answer is Blue.

What does it mean when we say something is equally likely?

• Some outcomes are less likely than others.

• All outcomes have the same probability of happening.

• Some outcomes are more likely than others.

• All outcomes will not happen.

Answer explanation

When we say something is equally likely, it means that all outcomes have the same probability of happening. This rules out the possibility of some outcomes being more or less likely than others.

If you roll a die, what is the chance of rolling an even number?

• more likely

• equally likely

• less likely

Answer explanation

When rolling a 6-sided die, there are three even numbers (2, 4, 6) and three odd numbers (1, 3, 5). This gives them equally likely to roll an even number and an odd number.

If you have a bag with 5 red balls and 2 green balls, what is the chance of picking a green ball?

• less likely

• equally likely

• more likely

• will not happen

Answer explanation

There are 5 red balls and 2 green balls. Since there are fewer green balls, it is less likely to pick a green ball compared to a red ball.