Grade 5 Probability - Problem(s) of the Week

If you flip a quarter what is the probability that it will land on HEADS?

• 1/4

• 1

• 1/2

• .2

Maggie is blindfolded and bobbing for apples at a Halloween party. If there are 6 green apples and 4 red apples and 10 yellow apples in the bucket. What is the probability that Maggie will pull out a yellow or red apple?

• 50%

• 4/20

• 75%

• 7/10

One coin in each bag is a loonie, all the other coins are quarters. Without looking, you pick a coin out of one of the bags. From which bag are you most likely to pick the loonie?

• Bag A

• Bag B

• Bag C

Brooklynn and Tatum have each ordered 4 T-shirts, and 3 skirts from their favourite online store. All of the items are different and each girl plans to share her new clothes with the other girl.

How many different outfits can they create with the new clothes if any of their T-shirts can be combined with any of their skirts?

*THIS PROBLEM IS TOUGH! Grab a piece of paper or a white board and draw a visual diagram in order to figure out the total possible outfit combinations!

• 48 Outfits

• 24 Outfits

• 12 Outfits

• 8 Outfits

Fill in the blanks to make this statement true.

It is equally likely that this spinner will land on ____or ______.

• 8 or 3

• 7 or 3

• 7 or 8

• 4 or 7

You are playing Snakes and Ladders with your friend. You are 9 spaces from the end. Is it certain, possible or impossible to get to the end with one roll of 2 dice (numbered 1-6)?

• Certain

• Possible

• Impossible

If you spin both spinners at the same time what result is MOST LIKELY to occur. *Think the highest odds/ probability.

• Spinner #1 will most likely land on the star

  Spinner #2 will most likely land on a square

• Spinner #1 and #2 will most likely land on a square

• Spinner #1 will most likely land on the heart

  Spinner #2 will most likely land on a star

• Spinner #1 will most likely land on the heart

  Spinner #2 will most likely land on a star

Alec has a bowl of mixed nuts, which contains 10 peanuts, 7 almonds and 3 cashews.

If Brandon starts to randomly select nuts from the bowl without looking, what is the probability that he will select a cashew?

• 30%

• 3

• 3/20

• 1/3

Which statement is true about the above spinner?

• It is certain you will land on a 5.

• It is more likely to land on an 8 than a 7.

• It is impossible to land on a 3.

• It is equally likely to land on a 3, 4, 5 or 6.

Ms. Mayan baked 10 cupcakes for her niece Rachel’s birthday party. She wrapped 10 coins in foil and pushed each of the coins into a cupcake so that every girl at the birthday party would find a hidden coin.

If only one of the coins is a twoonie, and Rachel will be the first to pick, what is the probability that she will choose the cupcake with the toonie in it?

• 1 out of 3

• 1 out of 10

• 1 out of 9

• 2 out of 10