All sides are the same, hence, all three angles are the same, and each one of them is 60 degrees. Due to that:
7x + 4 = 60
7x = 56
x = 56/7 = 8
8y + 12 = 60
8y = 48
y = 48/8 = 6
Answer:
a. A frame is a list of individuals in the population being studied.
Step-by-step explanation:
We are asked to choose the correct definition of frame from our given choices.
We know that a frame, in statistics, is a list of all those within a population who can be sampled. It may include individuals, households or institutions.
We also know that a frame is the source material or device from which a sample is drawn.
Upon looking at our given choices, we can see that option 'a' is the correct choice.