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Chapter 6

Test Yourself

Chapter

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Questions 6 and 7 are base…

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Exercises $5-7$ , use the …

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Twenty-five randomly selec…

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Use the following informat…

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07:07

Table 1.7 shows data for s…

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Fill in the blank cells in…

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An entertainment attendanc…

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The table shows the number…

Okay, so for this woman says, what is the value of C? The number of seniors on teams. So from a previous question, we were able to see that there were twelve hundred total students on teens. So then we have to know we're looking for What are we actually looking for? We're looking for this sea, but in order to get that, we need to use the percentage which is W. But the only way we can get the W is if we know X. So it kind of leads to one another. So we needed to get W to get Z. And in order to know w we need Max because we need to be able to subtract all these other percentages from the total, which is one hundred. So let's first try to solve for X from the previous question. We can use that same model and say that there's a total of twelve hundred students and then from there we know that one hundred twenty out of the one one thousand two hundred are sophomores. So if we divide that, we get zero point one, which is ten percent. So instead of this ex, I'm going to go ahead and to meet this. Thanks. I'm going to put ten percent in there. Okay, so now I have ten percent. Fifteen percent, forty percent W percent and one hundred percent. So then, from there, we know that one hundred percent is comprised of fifteen percent plus ten percent was forty percent plus ten percent. So in order to do that, we could just attract all these from both sides of the equation, leaving w by itself. And then we would get one hundred minus sixty five, which is thirty five percent. So again, I'm going to go ahead, delete this W I'm going to write a thirty five percent. So then we know that there's thirty five percent of the total our seniors so that we can take the total and take thirty five percent of that expressing a tussle. And then we should get the number of seniors floozy. Even if we put that into a calculator, we should get four hundred and twenty. Which means that there are four hundred and twenty seniors on the team

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