Interval scales contain the same amount of information as ordinal and nominal with the addition of O a. direction O b. distance from absolute zero O c. identification O d. equal units QUESTION 10 A population is defined as O a. every member of a sub-group O b. everyone on Earth O c. a random selection of individuals that researchers use for measuring or studying O d. everyone or everything that researchers are interested in measuring or studying QUESTION 11 Which symbol is used to refer to the size of a population? O an Ob. E Oco O d.N QUESTION 12 The numerical attributes of a population are referred to as O a. sample statistics b. statistics O c. parameters