1. which of the following chords are major triads? (picture)
a. a and b
b. a and d
c. c
d. d

2. arpeggio is another word for
a. triad
b. broken chord
c. harmony
d. consonance

3. a triad is a note chord
a. two
b. three
c. four
d. five

4. the top note of the triad is called the
a. root
b. third
c. fifth
d. octave

5. the interval between the root and the third of a major triad is made up of half steps
a. three
b. four
c. five
d. six

6. in a major key, major triads can be built on which scale degrees?
a. first
b. fourth
c. fifth
d. all above

step-by-step explanation:

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.