II. Show that the right hand side can be derived from the left hand side.

Hint: Use the definition of the sigma notation

1. cx = cx

2. c = nc, n = number of times c was repeatedly added

3. (x + y + z) = x + y + z

4. (x + y) 2 = x 2 + 2xy + y 2

III. Label the following as continuous or discrete, and as nominal, ordinal,

interval, or ratio. ( 5 points each)

Hint: Your choices are DN, DO, DI, DR, CI, CR. Support your answer

1. Temperature measured in degrees centigrade scale

2. The total number of students enrolled in DWCV for First Semester SY

2021=2022

3. Attitude Towards Mathematics in Likert Scale

4. Covid-19 Variants

5. Average Number of Covid-19 Cases per day in Ilocos Sur for the month

of August

6. Your Final Grade in AESAS at the end of the semester