Question

PLEASEEEEEE HELP ME!!!!!

VERY IMPORTANT!!!!
Amelie spins the following spinner, which has 10
equally sized spaces numbered 1
through 10. The numbers 1 and 7 are colored blue; the numbers 2, 4, and 6 are red; and the numbers 3, 5, 8, 9, and 10 are green. What is the probability that Amelie spins either an odd number or a red number?
Enter your answer as a reduced fraction, like this: 3/14

Answer 1

4/5

Explanation:

In probability, if there are two events and "or" is used, we will add the probabilities of each event. Since the event that an odd number is spun does not affect whether a red number is spun, we can calculate the probability of each event separately:

Probability of spinning an odd number:

5/10 because there are 5 odd numbers possible & 10 outcomes

Probability of spinning a red number:

3/10 because there are 3 red numbers & 10 outcomes

Now add the probability of each event:

5/10 + 3/10 = 8/10 = 4/5