A landlord wants to know the average income of his tenants. He selects three of his eight apartment complexes and collects income information from several randomly chosen tenants within the selected complexes.
A health agency needs to assess the performance of hospitals in a region but does not have the resources to evaluate each hospital. To reduce costs, the agency selects 5 of the 23 hospitals in the region and samples data related to performance from randomly chosen days and times.
Answer: Options D and E.
<u>Explanation:</u>
Cluster sampling is a sampling plan used when mutually homogeneous yet internally heterogeneous groupings are evident in a statistical population. It is often used in marketing research. In this sampling plan, the total population is divided into these groups and a simple random sample of the groups is selected.
Stratified sampling is a probability sampling technique wherein the researcher divides the entire population into different subgroups or strata, then selects the final subjects proportionally from the different strata.
Answer:
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Answer:
x=3. y=6
Step-by-step explanation:
So, to solve x and y, we need to take the equivelent sides of the two triangles, take their equations, and solve them.
So to find what x equals, we can take the 13, and make it equal to the 4x+1:
13=4x+1
Subtract the one from both sides:
12=4x
Divide both sides by 4:
3=x
Or
<u>x=3</u>
So we know the x value is 3.
Now lets solve for y using the bottom equations:
2x+y=8x-2y
Subtract 1y from both sides:
2x=8x-3y
Subtract 8x from both sides:
-6x=-3y
Divide both sides by -6:
x=1/2y
So we already know that x=3, lets plug that in for x, and solve for y:
3=1/2y
Or
1/2y=3
Multiply both sides by 2 to get 1y:
<u>y=6</u>
So we know that y is equal to 6.
Hope this helps!
Answer:
8 The victim wasn't mauled by a cougar - Clue 1
20 Dr. Alpha was in the kitchen cooking - Clue 2
-12 The victim had no venomous bites - Clue 3
72 Miss Beta was at the movie theater - Clue 4
14 The victim wasn't electrocuted - Clue 5
14 Coach Omega was sleeping at the atrium - Clue 6
-8 The murder did not include a firearm - Clue 7
-12 Mrs.Gamma was doing yoga at the gym - Clue 8
169 The murder wasn't drowning - Clue 9
-274 Mr.Epsilon was swimming laps at a pool - Clue 10
is what i know, i will figure out in a bit! :D
Step-by-step explanation:
Answer:
Step-by-step explanation:
