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gulaghasi [49]
3 years ago
7

mags wants to know what the hottest hairstyle Trend in is in our town what is the best group to survey of to find this informati

on

Mathematics
2 answers:
Butoxors [25]3 years ago
6 0

Answer:

The last option,

"Get a list of all the salons in her town and use a deck of cards to pick five of them to visit.  Survey all the hairstylists that work at each salon."

Step-by-step explanation:

When choosing a survey, we want to ensure not only that the survey is time-effective and cost-effective, but that it is representative of the entire population.

Just choosing the salons close to her house would not necessarily be a good representation of the entire town.

Choosing salons that celebrities go to creates bias in the survey as well, as does choosing only the salons she and her friends go to.

However, finding a list of all salons and using a deck of cards to represent it creates a random sample; this helps to eliminate bias and ensure the sample is representative.

kondor19780726 [428]3 years ago
6 0
You should choose the last option because it is the most random at choosing salons to ask and so will give the least biased answer.
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Jim is 3 times as old as his cousin Anthony the difference in their age is 18.How old is Jim?
IgorC [24]
Let's create expressions and equations to model this situation. Let Anthony's age be a.

"Jim is 3 times as old as his cousin, Anthony." Jim's age is 3a.
"The difference in their age is 18." 3a - a = 18

How old is Jim?

Let's solve the above equation for a to first find Anthony's age.

    3a - a = 18
    2a = 18
    a = 9

Remember, Jim's age is represented by the expression 3a. Substitute Anthony's age, 9, into the expression to find Jim's age.

    3a
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    27

Answer:
Jim is 27 years old.
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3 years ago
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Step-by-step explanation:

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What is the inverse of the function f(x) = 2x + 1?
Alexandra [31]

Answer:

f^{-1}(x) = \frac{x-1}{2}

Step-by-step explanation:

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Step-by-step explanation:

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2) A fair coin was tossed 75 times. The coin landed on Heads 42 times and Tails 33 times. What is the experimental probability o
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Answer:

\frac{11}{25}

Step-by-step explanation:

In the experiment that was conducted the coin was tossed a total of 75 times and out of those times it only landed on tails 33 times. Therefore the experimental probability of the coin landing on tails can be calculated by the dividing the times it landed on tails by the total number of times it was tossed. Like so...

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