frequency distribution and mean

Statistics
Tutor: None Selected Time limit: 1 Day

The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the mean waiting time. Round your answer to one decimal place.

Waiting Time (minutes)Number of Customers
0-314
4-713
8-1114
12-158
16-196
20-233
24-273
May 26th, 2015

Mean= (14*1.5+13*5.5+14*9.5+13.5*8+17.5*6+21.5*3+25.5*3)/71

(21+71.5+133+108+105+64.5+76.5)/71

579.5/71=8.16 hours

May 26th, 2015

To 1 decimal place, the mean is 8.2

May 27th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 26th, 2015
...
May 26th, 2015
Dec 3rd, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer