Currently viewing the tag: "Conditional probability"
Click here for the GTEN workshop video that provides learning activities and suggestions for teaching to develop an understanding of probability and the skill of decision making in situations involving chance.
The Global Teacher Empowerment Network (GTEN) videos provide resources for differentiation and inclusion, with guidance and learning […]
We have six cards, four Aces and the Jack of hearts and Queen of spades in an envelope or bag. You pick 2 cards at random and tell me “I have an Ace”. What is the probability that you have two aces?
Next suppose I pick 2 of the 6 cards at […]
You have 2 different bags of marbles.
One bag has 3 Red and 2 Blue the other has 5 Red and 3 Blue.
Mzo picks one marble from each bag at random.
What is the probability he picks one of each colour? What is the probability he does NOT pick a […]
In front of you there are 20 envelopes.
Eight of the envelopes each contain 5 blue and 3 red sheets of paper.
The other 12 envelopes each contain 6 blue and 2 red sheets of paper.
You choose one envelope at random. Then you choose a sheet of paper from it at […]
A motorist plans to drive to Cradock. Event X is that he arrives at his destination in less than 3 hours. He estimates that the probability of it snowing is 1/6 and the probability of event X if it snowed is 1/10.
What is the probability that it snows and he gets there in […]
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