In an experiment, several balls coloured either $green$ or $black$ and numbered $1$1 to $11$11 are placed in a bag. The table show all outcomes in the sample space. What is the probability that a ball drawn at random:

	$green$	$black$
1	×	×
2	×	×
3	×	×
4	×	×
5	×	×
6	×	×
7	×
8	×
9	×
10	×
11	×

is $black$ ?

has the number $2$2?

has the number $7$7?

has a number $3$3 or higher?

Medium

2 min

$1000$ $computer$ s were tested at a factory with $15$ found to be faulty. What is the experimental probability that a $computer$ at this factory will be faulty?

Easy

1 min

Of $50$50 people buying coffee at a cafe, $39$39 bought a latte.

Easy

1 min

The table shows the fighting style used by the winner in each mixed martial arts tournament fought last year.

Medium

5 min

Outcomes

MA11-7

uses concepts and techniques from probability to present and interpret data and solve problems in a variety of contexts, including the use of probability distributions

10.015 Experimental probability

Interactive practice questions

Outcomes

MA11-7

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