Question 177716: 1. The Citizens Banking Company is studying the number of times the ATM at an office complex is used per day. The following table shows the last 15 days use of the ATM.
83 64 84 76 84 54 75 59 70 61 63 80 84 73 68
a. What is the mean number of times the ATM was used per day? ________
b. What is the median number of days the ATM was used each day? ______
c. What is the standard deviation for the sample data (round to the nearest whole number)? _________
Answer by Mathtut(3670)   (Show Source):
You can put this solution on YOUR website! a)1078/15=71.87
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b)83 64 84 76 84 54 75 59 70 61 63 80 84 73 68
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54,59,61,63,64,68,70,73,75,76,80,83,84,84,84
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median is 73 which is the middle term
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c)standard deviation is 9.74
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SD  where X is each term, M is the mean and n is the number of terms
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