Below are the ages of students attending an art exhibit. 14, 16, 12, 13, 13, 15, 16, 17, 17, 13, 13, 15, 18, 14, 15, 11, 11, 12, 13

2. Find the first quartile of the data (Q1).

3. Find the third quartiles of the data (Q3).

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)