SOLUTION: 4. The age of a group of attendees at a senior citizen lunch are summarized in the frequency distribution below. Find the mean age. Round your answer to one decimal place. Age Fr

Algebra ->  Probability-and-statistics -> SOLUTION: 4. The age of a group of attendees at a senior citizen lunch are summarized in the frequency distribution below. Find the mean age. Round your answer to one decimal place. Age Fr      Log On


   

Question 438961: 4. The age of a group of attendees at a senior citizen lunch are summarized in the frequency distribution
below. Find the mean age. Round your answer to one decimal place.
Age Frequency
70-71 1
72-73 6
74-75 10
76-77 12
78-79 8
80-81 6
82-83 1
a. 13.5 b. 78.2 c. 74.7 d. 76.4 e. None of the above
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
I make no guarantees but I get 76.4.
(70.5+72.5*6+74.5*10+76.5*12+78.5*8+80.5*6+82.5)/44=76.4