indicate the correct scale of measurerment in each example
a) Nominal . B) ordinal . C) Interval . D) ratio
1- Age of volunteers at the service centre .....
2- BMI (Kg/m2) of participants assessed as: less than 20, 20-25,26-30, greater than 30.....
3- annual household income in dollars presented as: <30000,30000-59999,60000,99999,100000+.....
4-time(mins)taken to complete the marathon race.....
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