probability edma309
Published on Nov 20, 2015
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marble problem
"I'm a very rich man, so I've decided to give you some of my fortune. Do you see this bag? I have 5001 pearls inside it. 2501 of them are white, and 2500 of them are black. No, I am not racist. I'll let you take out any number of pearls from the bag without looking. If you take out the same number of black and white pearls, I will reward you with a number of gold bars equivalent to the number of pearls you took."
How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?
Take out 5000 pearls. If the remaining pearl is white, then you've won 5000 gold bars!
How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?
Take out 5000 pearls. If the remaining pearl is white, then you've won 5000 gold bars!
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sample space
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EVENT
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Outcomes
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experiments
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Data generators for probability experiments could include
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Untitled Slide
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Untitled Slide
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PICK A CARD FROM A STANDARD DECK
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a coin is tossed three times
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Experimental probability
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A die is tossed 100 times and the results are:
1 - 40 times
2 - 11 times
3 - 9 times
4 - 10 times
5 - 15 times
6 - 15 times
describe the chances of getting 1-6
most likely to get?
is the dice a fair dice?
how do you know?
What is the chance of rolling a 1 on the next roll?
What is the chance of rolling a 4 on the next roll?
most likely to get?
is the dice a fair dice?
how do you know?
What is the chance of rolling a 1 on the next roll?
What is the chance of rolling a 4 on the next roll?
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The distances jumped off the ground by Kermit on 5 consecutive jumps were...
1.1m
1.4m
0.9m
0.75m
1.1m
what is the likelihood of kermit jumping 3m on the next jump?
jumping 1m on the next jump?
of jumping more than 0.5m on the next jump.
jumping 1m on the next jump?
of jumping more than 0.5m on the next jump.
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Spinner is spun 50 times.
Red - 16 times
Green - 19 times
Blue - 15 times
is the spinner fair?
is 50 times enough?
what if I told you the spinner was fair?
how do you explain the variance
is 50 times enough?
what if I told you the spinner was fair?
how do you explain the variance
theoretical probability
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A fair die is tossed what is the probability of rolling a ???
A card is drawn from a standard pack, what is the probability of ???
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heart
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not a HEART
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not a 2
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2 or 6
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number less than 7
number no more than 7
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From a bag of marbles containing
5 red
4 blue
10 green
1 yellow
(write this down)
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