A spinner contains four equally shaded areas. Louise spins the spinner twice. Thus, options 1, 2, and 4 are correct.
What is the probability?
Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
Option 1. P(both green)
P(one green) = 1/4
P(second green) = 1/4
P(both green) = (1/4) x (1/4)
= 1/16
Option 2. P(both blue)
P(one blue) = 2/4 = 1/2
P(second blue) = 2/4 = 1/2
P(both blue) = (1/2) x (1/2)
= 1/4
Option 3. P(first green and then blue)
P(first green) = 1/4
P(second blue) = 2/4 = 1/2
P(first green and then blue) = (1/4) x (1/2)
= 1/8
Option 4. P(first orange then blue)
P(first orange) = 1/4
P(second blue) = 2/4 = 1/2
P(first orange then blue) = (1/4) x (1/2)
=1/8
Option 5. P(first orange then green)
P(first orange) = 1/4
P(second green) = 1/4
P(first orange then green) = (1/4) x (1/4)
= 1/16
Thus, options 1, 2, and 4 are correct.
Learn more about probability here;
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