Answer:
a. a selection of members from a population in such a way that every possible sample of the same size has an equal chance of being chosen.
Step-by-step explanation:
In the process of simple random sampling, a subset of the population is directly randomly chosen from the whole population, without dividing the population in groups (like in cluster sampling), without taking proximity into account (like in convenience sampling) or using set intervals (like in stratified sampling). In simple random sampling, every possible subset of the same size has the same probability of being selected.
Therefore, the statement that better fits this description is alternative a.
In order to answer the question, you need to know the area of a circle.
Area = pi * r^2
Area = 3.14 * (100/2) ^ 2
Area = 3.14 * 50^2
Area = 7850 mils^2 = 0.00785 in^2
Answer:
5-(-3y+3z)-3(-5z-y) = 6y+12z+5
Step-by-step explanation:
5−(−3y+3z)−3(−5z−y)
Distribute:
=5+3y+−3z+(−3)(−5z)+(−3)(−y)
=5+3y+−3z+15z+3y
Combine Like Terms:
=5+3y+−3z+15z+3y
=(3y+3y)+(−3z+15z)+(5)
=6y+12z+5
Answer: -0.6
Step-by-step explanation:
-6 / 10= -0.6
