MATH225N Week 4: Basic Probability

MATH225N Week 4: Basic Probability

1. While commuting, a driver sets her smartphone to randomly play songs from a pre-selected list. Of the songs on the list, 6are rock, 5are hip-hop, and 3 are country. What is the probability that the first song played is rock? Give your answer as a fraction. 3/7
2. A spinner contains the numbers 1through 50. What is the probability that the spinner will land on a number that is not a multiple of 8? Give your answer in fraction form. 22/25
3. A primary election is being held for a city to elect a new mayor. Of the candidates, 8are Republicans, 3are third party candidates, and 9 are Democrats. If an independent voter randomly selects a candidate for mayor, what is the probability that the candidate is third party? Give your answer as a fraction. 3/20
4. A spinner contains the numbers 1through 50. What is the probability that the spinner will land on a number that is not a multiple of 13? Give your answer as a fraction. 47/50……………………….purchase entire quiz at $10 only