
St. James 04-08-2025 Probability OR & AND
Presentation
•
English
•
6th - 8th Grade
•
Easy
Antoinette Norris Woodson
Used 1+ times
FREE Resource
20 Slides • 28 Questions
1
Take Notes
2
Open Ended
Determine as many Wordplexers as you can. Type the number then the phrase.
Examples: 2-skirting around the issue
8-balancing act
Be sure to include the two answers given
3
4
🎯 Objectives:
I can determine if events are independent or dependent.
I can calculate conditional probability in real-world contexts.
I can apply geometric models (like area) to calculate probability.
5
Take out your notes/graphic organizer
6
Probability
7
8
***Uniform Sample Space = equal chance for all outcomes***
9
S=[H,T]
S-[1,2,3,4,5,6]
12 possible outcomes
10
Theoretical vs. Experimental Probability
11
12
13
Let's Practice Probability!
14
Multiple Choice
15
Multiple Choice
P(event) = number of favorable outcomes
number of possible outcomes
True
False
16
Math Response
There are 52 cards in a standard deck.
P(5) = ?
17
Math Response
There are 52 cards in a standard deck.
P(red ace) = ?
18
Math Response
There are 52 cards in a standard deck.
P(greater than 5) = ?
19
Multiple Choice
20
Multiple Choice
Independent or Dependent?
Independent
Dependent
21
Multiple Choice
Independent or Dependent?
Kevin had 6 nickels and 4 dimes in his pocket. What is the probability he took out a dime, didn’t replace it and then grabbed another dime.
Independent
Dependent
22
Reorder
Lauren spins the spinner with 8-equal sized sections one time. Drag the tiles to arrange the events in order from least likely to most likely.
spinning a 4 or 5
spinning a 6
spinning an even number
spinning a number greater than 5
23
Match
Abigail mom picked up Chick Fil A for dinner. Abigail chose a sauce from the bag. The bag contained
4 chick fil a sauces
3 Polynesian sauces
4 Ranch
2 Ketchup
1 Bar-B-Que
The probability of selecting a Chick Fil A Sauce
The complement of selecting a Polynesian sauce.
The probability of selecting Ranch or Polynesian.
P(Ketchup or BBQ)
2/7
11/14
1/2
3/7
2/7
11/14
1/2
3/7
24
Multiple Choice
What is the probability of something that is CERTAIN TO HAPPEN?
1
2
0
25
Open Ended
A spinner has 5 equal sections (Red, Blue, Green, Yellow, Orange).
P(Green) = ?
Write your answer as a percent.
26
Multiple Choice
27
Match
Match the Sample Space to Each experiment.
G for Green
Y for Yellow
P for Purple
A coin is flipped and a spinner numbered 1-4.
A deck of cards.
{1A, 1B, 1C, 1D, 2A, 2B, 2C, 2D}
{G, G, G. Y, Y, Y, Y, P, P, P}
{1, 1, 2, 2, 6, 6, 6, 9}
{H1, H2, H3, H4,
T1, T2, T3, T4}
{Heart, Spades, Diamond, Club}
{1A, 1B, 1C, 1D, 2A, 2B, 2C, 2D}
{G, G, G. Y, Y, Y, Y, P, P, P}
{1, 1, 2, 2, 6, 6, 6, 9}
{H1, H2, H3, H4,
T1, T2, T3, T4}
{Heart, Spades, Diamond, Club}
28
Open Ended
A bag contains 4 red, 6 blue, and 5 green marbles.
What is P(not blue)? Write your answer as a fraction.
29
Open Ended
A spinner has 5 equal sections (Red, Blue, Green, Yellow, Orange).
List the sample space.
Write your answer as S=[your answer]
30
More Probability Notes
31
32
The Addition Rule
33
34
Refresher Probability "OR" so ADD!
35
Fill in the Blanks
36
Categorize
Deck of cards; drawing a 4 or drawing a 6
Deck of cards; Drawing a 4 or drawing a heart
Select a student; a junior or a senior
Select a student; sophomore or a business major
Chef decides; parmesan chicken or grilled sirloin
Roll a die; get an even number or a number < 3.
37
Multiple Choice
Amanda spins a spinner numbered 1 to 10. What is the probability that the spinner lands on a an odd number or a number that is divisible by 3?
203
51
53
54
38
Multiplication Rule
39
40
41
Multiple Choice
The spinner is spun twice. What is the probability that it lands on red first and then blue?
42
Multiple Choice
Is the event INDEPENDENT or DEPENDENT?
Amy plays card games. She picks a card at random. Then WITHOUT putting the first card back, he picks a second card at random.
Independent
Dependent
43
Multiple Choice
Ten cards numbered 1-10 are placed in a hat. What is the probability of randomly drawing a card with an even number then a card with a number greater than or equal to five if the first card is replaced?
41
32
103
53
44
Multiple Choice
What is the probability of tossing a coin four times and getting tails each time?
161
81
21
41
45
Multiple Choice
A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(both marbles are purple) =
92
31
21
41
46
Multiple Choice
47
Multiple Choice
48
Poll
What is your level of confidence of today's lesson?
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