Answer: 3 step by step approach
Step-by-step explanation:
Since the Chancellor has to use a multi-stage sample to carry out the survey, he or she should carry it out step by step.
First, he or she should randomly sample some solar systems from the galaxy, then secondly sample planets within that solar system, and finally randomly sample countries within the selected planets
Answer:
y = -x + 1
Step-by-step explanation:
y - y1 = m (x - x1)
y-2 = -1 (x - (-1))
y -2 = -x-1
y = - x -1 + 2
y = -x + 1
Answer:
It is an algebraic expression
A 2 - - 7 = 9
b - 3 - - 4 = 1
c - 5 - 6 = - 11
d - 3 - - 5 = 2
