The mean (or average) of a set of data values is the sum of all of the data values divided by the number of data values. That is: The marks of seven students in a mathematics test with a maximum possible mark of 20 are given below: 15 13 18 16 14 17 12. Find the mean of this set of data values.
The name dubplate also refers to an exclusive, 'one-off' acetate disc recording pioneered by reggae sound systems but also used by drum and bass and other electronic music producers, DJs and sound systems.he name dubplate also refers to an exclusive, 'one-off' acetate disc recording pioneered by reggae sound systems but also used by drum and bass and other electronic music producers, DJs and sound systems.
Bob Marley. Robert Nesta (Bob) Marley (Nine Miles, 6 februari 1945 â Miami, 11 mei 1981) was een Jamaicaans reggae-artiest. Hij draagt de bijnaam The King of Reggae. Hij was een van de belangrijkste verantwoordelijken voor de doorbraak van reggae buiten Jamaica en gold tevens als belangrijk voorvechter van het rastageloof.