9:8 is the equivalent ratio
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Define systemmatic sampling
Systematic sampling is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval. This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size
STEP 2: Determine the answer
The option that follows the systematic sample of workers is the last option because it follows a fixed, periodic interval of "every 4th worker until 80 workers are selected".
Hence, the answer is:
The consultant takes a list of the workers and selects every 4th worker until 80 workers are selected.
Answer:
12
Step-by-step explanation:
4(13+2)
=4(1+2)
=(4)(3)
=12
Answer:
A
Step-by-step explanation:
The picture is how you solve it
Answer:
D is correct.
Step-by-step explanation:
x - 2 = 0 or x + 4 = 0
x = 2 or x = -4
So we have (2, -4) and (-4, 8). D is correct.
