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sdas [7]
3 years ago
6

A particular airline wants to know how its customers feel about its service. Every day during the survey period, it randomly sel

ects 10 flights, and asks all of the passengers on these flights to fill out a short questionnaire. This type of sampling design is called____________.
Mathematics
1 answer:
-BARSIC- [3]3 years ago
5 0

Answer:

Cluster Random Sample

Step-by-step explanation:

another example should help

Example—An airline company wants to survey its customers one day. So they randomly select 5 flights that day and survey every passenger on those flights, it's a cluster random Sample

it's kinda similar

hope it helps

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A tractor costs $20000 and depreciates in value by 15% per year. how much will the tractor be worth after 5 years?
Brut [27]

Answer:

$ 8874.11 after 5 years

Step-by-step explanation:

 Each year it is worth 85 % of its value

20 000 ( .85)^5 = 8874.11

7 0
2 years ago
<img src="https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%209%20%2B%202x%20-%203y%20%3D%208" id="TexFormula1" title="x + y = 9 + 2x -
Vadim26 [7]

Answer:

(7,2)

Step-by-step explanation:

x + y = 9 + 2x - 3y = 8 is really two equations, and you should show this by separating x + y = 9 from 2x - 3y = 8 through the use of a comma, or the word "and," or through writing only one equation per line.

Here you have the system of linear equations

 x +   y =  9

2x - 3y = 8.

Let's solve this system by elimination.  Mult. the 1st eqn by 3, obtaining the system

3x + 3y = 27

2x - 3y =    8

-------------------

5x = 35, so that x = 7.  Subbing 7 for x in x + y = 9, we get 7 + y = 9, indicating that y = 2.

Thus, the solution to this system of equations is (7,2).


6 0
3 years ago
A cylinder has a base diameter of 16 feet and a height of 19 feet. What is its volume in cubic feet, to the nearest tenths place
qaws [65]

Answer:

3820.18

Step-by-step explanation:

5 0
3 years ago
The word "OF" also helps us to identify what in a percent equation
Stells [14]

Answer

Of is Multiplication I believe

Step-by-step explanation:

Of is multiplication

3 0
3 years ago
In a class election Mark received 3/5 of the votes in his class of 30 students
Andrei [34K]
So, we need to find how many students voted for Mark, I assume.

So, we need to divide 30 by 5

30 ÷ 5 = 6

So, 3 × 6 =18.

So, Mark received 18 votes

I think this is the answer.

Glad I could help, and good luck!

AnonymousGiantsFan

Those Great Videos [[ YouTube name ]]
6 0
3 years ago
Read 2 more answers
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