SFR Lesson Notes The Winston Churchill School
Probability: Expected Outcomes  Handling Data
PROBABILITY GRADE BC.notebook
Mathematical word for a shape
P
Name this shape
R
An 8 sided shape
O
How a ship measures direction
B
A special name for an angle between 0o and 90o
A
What's this called?
B
Special maths paper covered in dots
I
There are 3 ____ of water in a bucket
L
Area is the space _____ a shape Another word for subtract (that's not minus) The vertical axis on a graph
January 04, 2012
Probability
I T Y
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Jan 2620:27
Using probability to predict outcomes : Grade C
Imagine ‐ Pick 6 times
Imagine ‐ Pick 12 times
How many: Red? Blue? Yellow?
How many: Red? Blue? Yellow?
Imagine ‐ Pick 30 times
Imagine ‐ Pick 9 times
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Using probability to predict outcomes : Grade C
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Jan 409:29
1
PROBABILITY GRADE BC.notebook
January 04, 2012
Jan 2620:45
Addition Rule for Events
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: Grade C
1
2 P (red or yellow)
O R
P (yellow or blue)
P (red or blue)
3
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Jan 2621:01
Combining probabilities ‐ using tree diagrams: Grade B
The probability that it rains on any day is 1/5, draw a tree diagram to show the probabilities for two days.
Jan 409:41
Jan 2621:19
2
PROBABILITY GRADE BC.notebook
Combining probabilities ‐ using tree diagrams: Grade B
January 04, 2012
1
The probability that Jenny is late for school is 0.3. Find the probability that on two consecutive days, she is never late
Jan 2621:19
Jan 2808:04
Combined INDEPENDENT Events: Grade B
2 3
x2 P (red) and P(yellow) P (yellow) and P(blue)
P (red) and P(blue)
Jan 2808:04
P (hitting) = 1/4
A
N
D
Jan 2621:05
Jim has two shots
a) He hits the target both times b) He hits the target once c) He hits the target at least once
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3