A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. What is P(not even)?
A. start fraction 1 over 3 end fraction
B. one-half
C. start fraction 1 over 5 end fraction
D. one-fourth
Out of the 10 sections, 5 are even and 5 are odd. Therefore, the probability of getting an even number is 5/10 or 1/2.
To find the probability of not getting an even number, we can subtract the probability of getting an even number from 1.
P(not even) = 1 - P(even)
P(not even) = 1 - 1/2
P(not even) = 1/2
So the answer is option B: one-half.