Which of the following is the description of Ordinal level. * a. Grading system involving letters b. the measurement of height of sample c. Temperature d. Classifying residents according to their area...

Which of the following is the description of Ordinal level.
 *

a. Grading system involving letters

b. the measurement of height of sample

c. Temperature

d. Classifying residents according to their area codes

2. A researcher divided the subjects into 4 groups according to year level and then selected members from each group for the sample. what sampling method was used?
 *

a. Random

b. Stratified

c. Cluster

d. Systematic