Marginal Frequency Table

Abigail surveys students in different grades, and asks each student which pet they prefer. Record the responses in the table below. What is the marginal frequency of each type of pet?
  1. Sum the responses of people with each characteristic for the first pet type, “bird.”
  2. Sum the responses of people with each characteristic for the first pet type, “cat.”
  3. Sum the responses of people with each characteristic for the first pet type, “dog.”
  4. Sum the responses of people with each characteristic for the first pet type, “fish.”
  5. Organize the marginal frequencies in a two-way frequency table. Create a row and include the marginal frequencies of each response under the name of each response.