GRADE 12 DATA MANAGEMENT

1. Each morning before school Sidney chooses how she'll get to school. She has three options of travelling to school. She can either walk which she has a 0.21 probability of choosing, she can take the bus which she has a 0.18 probability of choosing or she can get a drive from a friend. What's the probability she decides to get a drive from a friend? Write your answer to 2 decimal places. 2. There's a 0.52 probability a student in this class will have a pet dog, and a 0.45 probability of having a pet cat. There is also a 0.17 probability a student has both a cat and a dog. What's the probability a student has a cat or dog? Write your answer as a decimal to 2 decimal places