5. Press Enter.  Your standard deviation for your sample should appear in the box. 1  You can also use the Excel formula wizard to choose the standard deviation formula. 2  Click on Insert in the Formula bar.3  Then, select Statistical and select STDEV.. 4  Type in your data range in the box that pops up.. Press Enter.  Your standard deviation for your sample should appear in the box. 1  You can also use the Excel formula wizard to choose the standard deviation formula. 2  Click on Insert in the Formula bar.
The average salary of a foreign domestic worker in Singapore ranges between SGD$310 and $550 a month. The wage of a Foreign Domestic Worker (FDW) depends on the nature of her job scope in the household under which she is employed, her past experience as a domestic helper, as well as her nationalities.
The Cost. Part-time maids are available for between $10 and $20 an hour, and can be hired independently or through a company. Full-time, live-in maids can be hired for as little as $450 per month, although expats often pay them $650 or more, depending on their level of experience.Employers must also pay a monthly levy (currently $265) to the Singaporean government, plus a security bond of $5,000.iring. Fees vary, but from around $400, a maid agency will find you a maid, and will usually give you the chance to interview several. Alternatively, you can source a maid yourself (log on to the Ministry of Manpower website), but the process can be confusing.