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 16
5 - 8 11
9 - 12 5
13 - 16 3
17 - 20 1
  1. How many of the people surveyed make less than 9 phone calls daily?








  2. How many people were surveyed?





     

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