A spinner with 10 equally sized slices has 2 red slices , and 4 yellow slices, and 4 blue slices. The dial is spun and stops on
a slice at random. What is the probability that the dial stops on a red or yellow slice?
1 answer:
Given parameters:
Number of equally sized slices = 10
Red slices = 2
Yellow slices = 4
Blue slices = 4
Unknown:
Probability that the dial stops on a red or yellow color =?
Solution:
Probability is the likelihood of an event to occur.
Probability =
This probability cites a mutually exclusive event because if the dial stops on red, it cannot be on yellow.
Pr(red or yellow) = Pr(red) + Pr(Yellow)
= +
=
=
The probability of red or yellow is
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