New Zealand
Level 8 - NCEA Level 3

# Discrete Random Probability Distribution

## Interactive practice questions

Is the following a probability distribution?

 $x$x $p\left(x\right)$p(x) $2$2 $4$4 $6$6 $8$8 $0.2$0.2 $0.4$0.4 $0.6$0.6 $0.8$0.8

No

A

Yes

B

No

A

Yes

B
Easy
Less than a minute

Is the following a probability distribution?

Is the following a probability distribution?

$X$X is a random variable for the length of a goanna. Is $X$X discrete?

### 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

#### 91586

Apply probability distributions in solving problems