Answer to Question #44746 in Statistics and Probability for Vincent Lee

Question

The table below show the time distribution of fifty depositors to finish a transaction with a bank personnel.

Time Number of Depositors (f)
(nearest minute)

23-25 4
20-22 6
17-19 16
14-16 8
11-13 8
8-10 6
5-7 2

Deternine the values of:

a.) mean
b.) median
c.) mode
d.) first quartile
e.) fourth quartile
f.) 80th percentile