The table below contains information on gross weekly earnings of Mr Median-Employee for2014 -2018.

YearGross weekly

earnings (L)

2014 495

2015 501

2016 498

2017 510

2018 521

a). What type of dataset we have in this table: time series, cross sectional or panel data?

b). Calculate the mean of Mr Median-Employee's gross weekly earnings. Explain your calculations.

c) Calculate the range of Mr Median-Employee's gross weekly eamings.

d). Calculate the variance of Mr Median-Employee's gross weekly earnings. Explain your calculations.

e). Calculate the standard deviation of Mr Median-Employee's gross weekly eamings.Explain your calculations.