4. The following spinner is divided into 4 colours. The spinner is spun 40 time and the results
are shown in the table below.
green
blue
Colour
green
yellow
white
yellow
white
blue
Number of Times
16
11
8
5
a) State the experimental probability of spinning white.
Express your answer as a simplified fraction, decimal, and percentage. (2 marks)
b) State the theoretical probability of spinning white. (1 mark)
5. Determine the probability of the following events occurring if:
(1 mark each = 3 marks total)
Make sure to present your answers in the most simplified form!
a) The odds against an event are 5:2
b) The odds in favour of an event are 95:5
c) The odds against an event are 1:1