
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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grace has a biased 5 sided spinner

Transcribed Image Text:6 Grace has a biased 5-sided spinner.
orange pink
green
red
blue
Grace is going to spin the arrow on the spinner once.
The table below gives the probabilities that the spinner will land on red or on blue or on green.
Colour
Red
Blue
Green
Orange
Pink
Probability
0.20
0.12
0.08
The probability that the spinner will land on orange is 3 times the probability that the
spinner will land on pink.
(a) Work out the probability that the spinner will land on orange.
Probability-
(3)
Grace spins the arrow on the spinner 150 times.
(b) Work out an estimate for the number of times the spinner lands on blue.
(2)
mar
arks)
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