Using sampling concepts, it is found that:
a) The best method is: 25 adult residents are randomly selected from the city;
b) The estimate is that 11,536 adults voted in the election.
<h3>What is sampling?</h3>
It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.
In this problem, the sample will be representative if all adults, no matter if senior or not, homeowners or not are represented, hence the best method is:
25 adult residents are randomly selected from the city;
The estimate of the number of adults that voted is:
14/25 x 20,600 = 11,536.
More can be learned about sampling concepts at brainly.com/question/25122507
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Step-by-step explanation:
Since X is given to you (in this case, it’s 7), all you have to do is plug it into the equation.
1. -2(7) + 10
When a variable or a number is directly outside a number, it means you should multiply the two numbers, no matter what.
Now that we know this: -2 * 7 = (-14) When a negative is multiplied by a positive, it turns out negative.
2. (-14) + 10: Let’s say (for instance), that I owe 14 dollars to a friend. If I pay 10 of it, how much do I owe my friend? It would be -4 because you’re still in debt, and haven’t payed your friend all of her 14 dollars back.
3. You should come up with an answer of (-4) because of all of the steps given.
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Hello,
dom f={-2,-1,0,2}
Range={3,5,8}
C is 6 & d is 9
6+9=15
3(6)+2(9)=36
18 + 18 = 37
Answer:
7
Step-by-step explanation:
4-(-3)=
4+3=
7