Fiona is interest in investigating happiness and animal ownership among all of her current graduate students (Hint: N). Use the table below to answer both questions 3 and 4. Happiness Level Number of Animals Owned 1 0 1 2 5 3 3 4 2 4 5 0 5 7 5 6 3 1 7 9 2 3. Using the data from Fiona graduate students (table above), calculate the following information. (5 pts) a. The mean number of animals? (3 pts) b. Indicate if this is a bimodal or non modal distribution for number of animals owned? Provide a 1 sentence explanation. (2 pts) 4. Calculate the following information using the data from Fiona's graduate students (table above). (10 pts) a. Calculate the mean happiness level. (3 pts) b. Calculate the variance of happiness level using the computational formula for the Sum of Squares. (5 pts) c. Calculate the standard deviation for happiness level. (2 pts)