1. A community health status survey obtained the following demographic information from the respondents: Compute the relative frequency and cumulative relative frequency of the age groups. Also, estimate the average age of the sample of respondents. What assumptions do you have to make to do this? 2. The Excel file MBA Student Survey provides demographic data and responses to questions on the number of nights out per week and study hours per week for a group of MBA students. Construct frequency distributions and compute the relative frequencies for the categorical variables of gender, international student status, and undergraduate concentration. What conclusions can you draw?