A marketing staff in a bank is collecting data on its customers. The following is a small segment of the dataset obtained.

Customer ID	Gender	Suburb	Age	Employment status	Weekly salary	Number of Accounts	Years of banking
001	Female	Sydney	27	Part-time	Less than 500	2	3
002	Male	Homebush	54	Full-time	500 to less than 1000	2	10
003	Male	Randwick	38	Unemployed	Less than 500	2	12
004	Female	Glebe	33	Full-time	1000 to less than 1500	2	5
005	Female	Darlington	18	Part-time	500 to less than 1000	2	1

Calculate the sample standard deviation of the number of accounts of the customer. (Write your answer to 4 decimal places).

Answer rating: 100% (QA)

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