A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. Find P(not even).
A. 1/3
B. 1/2 ••
C. 1/5
D. 1/4
Yes, 1/2
To find the probability of an event, you need to determine the number of favorable outcomes (in this case, the outcomes that are not even) and divide it by the total number of possible outcomes.
First, let's determine the number of favorable outcomes. There are 10 sections on the spinner, and half of them are even numbers. So, there are 10/2 = 5 even numbers on the spinner. Therefore, the number of favorable outcomes (not even numbers) is 10 - 5 = 5.
Now, let's find the total number of possible outcomes. Since the spinner has 10 equal sections, there are 10 possible outcomes.
Finally, divide the number of favorable outcomes (5) by the total number of possible outcomes (10) to find the probability of not getting an even number:
P(not even) = 5/10 = 1/2
Hence, the correct option is B. 1/2.
To find the probability of not getting an even number when spinning the spinner, we need to determine the number of outcomes that are not even and divide it by the total number of possible outcomes.
The total number of possible outcomes is 10 since the spinner is divided into 10 equal sections.
The number of outcomes that are not even is 5: 1, 3, 5, 7, and 9.
Therefore, the probability of not getting an even number is 5/10, which simplifies to 1/2.
Thus, the correct answer is B. 1/2.