Answer:
Option E
Step-by-step explanation:
This survey will not be reliable as it is chosen for convenience; the first 120 students to arrive in school on a particular morning and this collection of individuals may not be a representative of the population. The study may become biased because it does not take into account the latecomers among the students which might have been changed the study from systematically favoring certain outcomes.
1/2 + 1/4 =
2/4 + 1/4 =
3/4 <===
Add them up and divide the result by 2, and you'll have the midpoint.
((2-3i)+(-4+6i)) / 2 =
(-2+3i)/2 =
-1+1.5i
