
Probability 4.1.3
Presentation
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Medium
Standards-aligned
Courtney Kuschel
Used 62+ times
FREE Resource
1 Slide • 12 Questions
1
By Courtney Kuschel
2
Open Ended
If you want to have the best chances of getting a red gumball from a gumball machine, is it better if the machine is full of gumballs or half empty?
3
Open Ended
How do the chances of winning at bingo change if you have 40 or 50 people playing instead of 10 people?
4
Multiple Choice
You have 1 yellow, 2 red, 4 green, and 5 blue blocks. You were to reach into the bag and select one block without looking. What is the probability of getting red?
P(Red) =
1/4
12/2
2/12
2
5
Multiple Choice
You have 1 yellow, 2 red, 4 green, and 5 blue blocks. You were to reach into the bag and select one block without looking. What is the probability of getting yellow?
P(Yellow) =
1/12
1/4
1
12/1
6
Multiple Choice
You have 1 yellow, 2 red, 4 green, and 5 blue blocks. You were to reach into the bag and select one block without looking. What is the probability of getting green?
P(Green) =
12/4
4/12
1/4
4
7
Multiple Choice
You have 1 yellow, 2 red, 4 green, and 5 blue blocks. You were to reach into the bag and select one block without looking. What is the probability of getting Blue?
P(Blue) =
1/4
12/5
5
5/12
8
Multiple Choice
Your answers for the last four questions, did those represent theoretical probabilities (what we expect) or experimental probabilities (what actually happened)?
Theoretical
Experimental
9
Multiple Choice
If you reached into the bag 12 times, how many times would you expect to have selected a blue block?
1
5
4
8
12
10
Multiple Choice
Now we doubled the blocks. Before, there was a 2/12 chance of getting red. Do you think doubling the blocks will change the likelihood of getting red?
Yes. The probability doubled.
No. It's still a 2/12 chance because 2/12 = 4/24
Yes. There is so much blue, it will make it harder to get red.
11
Match
Now there are 24 blocks in the bag. Match the probabilities.
Blue
Green
Yellow
Red
10/24 or 5/12
8/24 or 4/12 or 1/3
2/24 or 1/12
4/24 or 2/12 or 1/6
10/24 or 5/12
8/24 or 4/12 or 1/3
2/24 or 1/12
4/24 or 2/12 or 1/6
12
Open Ended
Originally you had 12 blocks in the bag. Now there are 24 blocks. Has the probability for drawing each different-colored block changed? Explain.
13
Match
Match the word to it's definition.
Experimental Probability
Theoretical Probability
Probability
Outcome
Common
What actually happens.
What we expect to happen.
How likely something will happen
Any possible result
Together, equally belonging
What actually happens.
What we expect to happen.
How likely something will happen
Any possible result
Together, equally belonging
By Courtney Kuschel
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