Question

1. for a 10 - day period, a bank kept track of the number of new accounts opened each day. the results are shown in the table below. what is the median number of accounts opened per day during this 10 - day period?

day
may 7
may 8
may 9
may 10
may 11
accounts
6
2
7
5
4
day
may 14
may 15
may 16
may 17
may 18
accounts
4
8
6
4
7
a. 5
b. 5.3
c. 5.5
d. 6

Explanation:

Step1: List the account numbers

The number of accounts opened each day are: 6, 2, 7, 5, 4, 4, 8, 6, 4, 7.

Step2: Sort the list in ascending order

Sorted list: 2, 4, 4, 4, 5, 6, 6, 7, 7, 8.

Step3: Find the median

For 10 values (even), the median is the average of the 5th and 6th values: $\frac{5 + 6}{2} = 5.5$.

Answer:

C. 5.5