Iwill mark brainliest who ever hepls!

which set of ordered pairs represents a function?

a) {(0, 1), (1, 3), (1, 5), (2, 8)}

b) {(0, 0), (1, 2), (2, 6), (2, 8)}

c) {(0, 0), (0, 2), (2, 0), (2, 4)}

d) {(0, 2), (1, 4), (2, 6), (3, 6)}

Television viewing reached a new high when the global information and measurement company reported a mean daily viewing time of 8.35 hours per household. use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household. a. what is the probability that a household views television between 4 and 10 hours a day? (to 4 decimals) b. how many hours of television viewing must a household have in order to be in the top 7% of all television viewing household? (to 2 decimals) c. what is the probability that a household views television more than 4 hours a day? (to 4 decimals)