bob make 720 telephone calls each year. what is the average (arithmetic mean) number of calls that bob makes per month
60
70
80
100
120
60 right?
yes. 60*12 = 720
To find the average number of calls Bob makes per month, we need to divide the total number of calls he makes in a year (720) by the number of months in a year (12).
First, let's find the average:
Average = Total number of calls / Number of months in a year
Average = 720 calls / 12 months
Average = 60 calls
Therefore, the average number of calls Bob makes per month is 60.