Can someone solve these equations with the work, and explain how to do them? I'm completely lost and it's due tomorrow, plus ano
ther page, thanks! :)
1 answer:
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To find the number of males from the new sample, we first need to compute for the z-score as shown below.
where Χ is the mean height we want to check, μ is the expected mean of the height, δ is the standard deviation, and n is the number of samples. Since, we have all of these information at hand, we can now compute for the z-score of the sample.
Now, using the z-table, we can find its p-value which we'll be using to find the number of males. Since z-score is -1, we have P(z > <span>0.158655) = 1 - 0.158655 = 0.841345.
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This signifies the percent of the total population that has a height of more than 164. So, out of 1200, we have 0.841345(1200) = 1009.614 ≈ 1010.
Therefore, we've seen that there are approximately 1010 male from the sample that will have a height of more than 164.
Answer: 1010
where Χ is the mean height we want to check, μ is the expected mean of the height, δ is the standard deviation, and n is the number of samples. Since, we have all of these information at hand, we can now compute for the z-score of the sample.
Now, using the z-table, we can find its p-value which we'll be using to find the number of males. Since z-score is -1, we have P(z > <span>0.158655) = 1 - 0.158655 = 0.841345.
</span>
This signifies the percent of the total population that has a height of more than 164. So, out of 1200, we have 0.841345(1200) = 1009.614 ≈ 1010.
Therefore, we've seen that there are approximately 1010 male from the sample that will have a height of more than 164.
Answer: 1010
Hello! To find the composition of functions we want to take all the x values in f(x) and replace them with g(x). Then to solve for a specific value, we plug in that value for x. Let's look at the steps below
So we find
Now we want to find the solution when x is 9 so we plug in a 9 whenever we see an x
So we find
Now we want to find the solution when x is 9 so we plug in a 9 whenever we see an x