Probability

For numbers 1-5, you will use the spinner at the top of the page, and the answers can be either certain, likely, equally likely, unlikely, or impossible.

Certain - It will always land there
Likely - There are a lot of that choice, so it will land there more often
Equally Likely - There is the same number of that choice as there are of ther others
Unlikely - There are not many of that choice, so you won't land on it that often
Impossible - There are no options for that choice, you will never land on it

#1 what is the probability of spinning an even number? There are 3 even numbers and 3 odd numbers, so if there is the same number of options, which probability word will you choose?

#2 what is the probability that you will land on a 2? There is one 2 on the spinner, there aren't a lot of 2's on the spinner.

#3 Spinning a 4, 5, or 6? They are asking for how often the spinner will land on those three numbers, that leaves three left over. Seems to me that you have the same chance that it will land on a 4, 5, or 6.

#4 Spinning a 7? If you look at the spinner, there are no 7's. You will never land on a 7.

#5 Spinning a 1, 2, 3, 4, 5, 6? That's all that is on the spinner, so you will always land on one of those numbers won't you?


Word Problem
#6 Jorge needs meat! He has 2 pastas, 3 rice, and 5 meats. It isn't certain that he picks meat, if that were the case everything would be meat. It isn't impossible to pick meat, because he has some. It isn't equally likely that he pick meat because there isn't exactly 5 of one other choice. So it's either unlikely, or likely. Likely means he's got more meat that any other food, and unlikely means he has less meat than any other food....
Now that I've narrowed it down for you, what do you think?

#7 Don't trust the drawing. Make a Tree diagram and pick the three shapes to start with, then your options will be the same three shapes. Doesn't make sense does it? That's because you're still looking at the picture!

_______Circle
Circle___Pentagon
_______Trianlge

________Circle
Pentagon__Pentagon
________Triangle

_______Circle
Triangle_Pentagon
_______Triangle

Now how many outcomes did you make?