Elize, Lily and Marco start a business.
Lily buys 20 rolls of ribbon.
8 are red, 6 are blue, 4 are yellow and 2 are pink.
A roll of ribbon is chosen at random.
On the probability scale, draw an arrow ( ↓ ) to show the probability that this roll is
(a) yellow
(b) not red
(c) green.
360 people go on a school trip to one of four places.
Some of the information is shown in the table.
Find the probability that
a girl, picked at random, visits the Wildlife centre,
a person, picked at random from those visiting the Botanic gardens, is a girl,
The probability that it will rain at the wedding is 0.12 .
Find the probability that it will not rain.