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vesna_86 [32]
3 years ago
6

A movie channel sends an email survey to all customers who purchase their service each month. The previous month, 182,000 people

purchased
subscriptions. Surveys were sent to 9,000 of these people, chosen at random, and 1,080 people responded to the survey. Identify the population and the
sample.
The population is 182,000 and the sample is 1,080.
The population is 9,000 and the sample is 1,080.
The population is 182,000 and the sample is 9,000.
The population is 9,000 and the sample is 182,000.
Mathematics
1 answer:
m_a_m_a [10]3 years ago
4 0

Answer:

The population is 9,000 and the sample is 1,080

Step-by-step explanation:

Your population is 9,000 because that is how many people got the survey. The number 182,000 is irrelevant because that information does not matter with regards to the surveys. Your sample is 1080 because that is the number of people that responded.

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During the first four months of the year, Jack earned $1270, $1150, $870 and $1450 If Jack must have an average salary of at lea
tia_tia [17]

Answer:

1010

Step-by-step explanation:

There are a whole class of questions that rely on the method to this one.

First add up what you know

1270 + 1150 + 870 + 1450 = 4740

Now add on the 5th month (which you don't know. Call it x)

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Divide by 5

(4740 + x)/5 = 1150 and that is your equation    

Solution

Multiply both sides by 5

5*(4740 + x) / 5 = 1150 * 5

4740 + x = 5750

Subtract 4740 from both sides

4740 - 4740 + x = 5750 - 4740

x = 1010

Which seems kind of low, but that's what the numbers come to.

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