Probability

NZ Level 8 (NZC) Level 3 (NCEA) [In development]

Mathematical Notations for Probability

Two events are defined as:

Event $A$`A`: it will rain tomorrow

Event $B$`B`: there will be a storm tomorrow

The notation $P(A\cup B)$`P`(`A`∪`B`) is suitable to describe which of the following probabilities?

probability of no rain tomorrow

A

probability of there being either a storm or rain tomorrow

B

probability of a storm occurring tomorrow

C

probability of there being a storm tomorrow but no rain

D

probability of no rain tomorrow

A

probability of there being either a storm or rain tomorrow

B

probability of a storm occurring tomorrow

C

probability of there being a storm tomorrow but no rain

D

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Investigate situations that involve elements of chance: A calculating probabilities of independent, combined, and conditional events B calculating and interpreting expected values and standard deviations of discrete random variables C applying distributions such as the Poisson, binomial, and normal

Apply probability concepts in solving problems