Question

A spinner with 12 equal sectors labeled 1 - 12 is spun. Find P(prime number).
A 5/12
B 1/2
C 7/12
D3/4

Answer 1

Probability of an event is the number of desired outcomes divided by the number of possible outcomes.

Desired Outcome: a prime number

Possible Outcomes: Integers 1, 2, 3, 4, ... 12

Answer 2

Number of Desired Outcomes: There are ? prime numbers in the set Integers 1, 2, 3, 4, ... 12

Number of Possible Outcomes: 12

Answer 3

Probability of Prime Number = ?/12

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