A survey was conducted to see how many phone calls people made daily. The results are displayed in the table below: Number of calls made Frequency 1-4 13 5-8 11 9-12 8 13-16 4 17-20 Round all answers to the nearest whole number. 1) How many of the people surveyed make less than 13 calls per day? 2) % of those surveyed make at least 13 calls per day? 3) How many people were surveyed