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tresset_1 [31]
3 years ago
7

What is the sampling method used in the following scenario? The marketing manager for an electronics chain store wants informati

on about the ages of its customers. Over the next two weeks, at each store location, 100 randomly selected customers are given questionnaires to fill out asking for information about age, as well as about other variables of interest.
Mathematics
1 answer:
IRISSAK [1]3 years ago
3 0

Answer:

Step-by-step explanation:

The method applied in this scenario is called simple random sampling. A sample of 100 customers is chosen from a larger population of customers and each customer has the same chance of being selected for the survey at any given time. Also, the chance of selecting 100 customers from each store is the same during the sampling process. The order of sampling at each store does not follow a certain order, thus, It is different from systematic random sampling.

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Two consecutive even numbers are such that five times the smaller number , subtracted from eight times the bigger gives 58. Find
olga55 [171]

Answer:

14\text{ and }16

Step-by-step explanation:

Let the smaller number be x. Since they are consecutive even numbers, the larger number can be represented by x+2.

Therefore, we have the following equation:

8(x+2)-5x=58,\\8x+16-5x=58,\\3x=42,\\x=\boxed{14}

Thus, the larger number is x+2=\boxed{16}

6 0
3 years ago
You have 8 times as many dimes as nickels. You have 18 dimes
fenix001 [56]

Answer:

$1.70

Step-by-step explanation:

Let the number of nickels be  x.

Thus, by the problem statement, the number of dimes is  [/tex] 8 \cdot x = 8x. [/tex]

Therefore, there are 8x + x = 9 coins in total. To find what x is, we need to solve the equation 9x = 18. This can be done by dividing both sides by 9 which gives x=2. Plugging these values in tells us that there are 2  nickels and 16 dimes. (Test it out!) Thus, the nickels are worth 2 \cdot 5 = 10 cents and the dimes are worth 16 \cdot 10 = 160 cents, so in all, you have 10 + 160 = 170 cents which is $1.70.

Hope this helps :)

7 0
2 years ago
1. What is the volume of the following cone? *<br> 2.5 mm<br> 1<br> 12.6 mm<br> 1
mafiozo [28]

Answer: V=πr2h 3

=π·2.52·12.6 3

=82.46681

Step-by-step explanation:

3 0
3 years ago
Need help hurry pleaseee !!
DanielleElmas [232]

Lets solve the equation and see the steps so it is easier.

x/2 - 8 = 14

Add eight to both sides of the equation to get x/2 alone.

x/2 - 8 + 8 = 14 + 8

x/2 = 22

Multiply both sides by two to get x alone.

x/2 • 2 = 22 • 2

x = 44

Now we see the steps we made. Lets look at the choices. Your answer is the third choice. I hope this helps!

3 0
3 years ago
Read 2 more answers
Write 0.63 as a fraction in simplest form.
Annette [7]

63/100?

no te entiendo hablo español bro srry :(

3 0
3 years ago
Read 2 more answers
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