NZ Level 8 (NZC) Level 3 (NCEA) [In development] Mathematical Notations for Probability

## Interactive practice questions

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(AB) 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
Easy
Less than a minute

In an experiment, a die is rolled and the number appearing on the uppermost face is noted.

Event $A$A: getting an odd number

Event $B$B: getting a multiple of $3$3

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

One card is drawn from a regular deck of cards.

Event $A$A: getting a black card

Event $B$B: getting a face card

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

How could the probability of the event $A$A: "getting a heads when a coin is tossed" be written using probability notation? Select all the correct options.

### Outcomes

#### S8-4

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

#### 91585

Apply probability concepts in solving problems