60
61
62
63
64
65
66
68
68
69
70
73
73
74
Calculate the arithmetic mean age of the senior citizens to the nearest hundredth of a year.
84.45
66.86
69.65
61.45
To calculate the arithmetic mean age of the senior citizens, we add up all the ages and then divide by the total number of ages.
(60 + 61 + 62 + 63 + 64 + 65 + 66 + 68 + 68 + 69 + 70 + 73 + 73 + 74) / 14 = 942 / 14 = 67.29
So, the arithmetic mean age of the senior citizens is 67.29 years.