Term 2 Week 9

Due to Winter Festival commitments there is no Year 8 maths this week.

Congratulations to those who completed the Probability topic test last week, you have all done very well.

I will post next weeks assignment here shortly anyway...

Regards,

Josh

Term 2 Week 8

Due to the class play, and other delays the Probability Assignment 2 due date is extended to Thursday - at which time we will have an end of topic exam.

The next assignment will be set on Tuesday week 9 for the new topic and due Tuesday of Week 10.

Term 2 Week 7

We continue our study of probability by giving absolutely impossible and absolutely certain events a number value:

P(certain) = 1
P(impossible) = 0

We also note that probabilities are 'complementary', that is the probability of something happening added to the probability that it won't happen is always 1.

Eg The probability of rolling a '5' is 1/6 and the probability of not rolling a '5' is 5/6. Adding these together we get the probability of either rolling a '5' or not rolling a '5' is 1.

Knowing this we can calculate the probability of some events very simply:

Eg If we know the probability of winning a lottery is 1/1000000, then we can subract that number from 1 and work out that the probability of not winning the lottery is 999999/1000000.

The Probability Assignment 2 is here

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