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3 years ago

7

Can someone please awnser this for me i need to get a b in this class!!!!

1 answer:

Snezhnost [94]3 years ago

3 0

The answer would be 30%

Explanation~

Well, you would have to add 27 and 23 first since, it says, “What percentage of the twelfth grade students have more than one college in mind” then, you’d have to figure out the percentage from there. And the percentage would be, 29.4117647059% of 170, round that to the nearest percent and it’s 30 I’m pretty sure.

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450 high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (

umka21 [38]

Answer:

The margin of error is of 0.01.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.7}{2} = 0.15$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.15 = 0.85$ , so Z = 1.037.

The margin of error is of:

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Standard deviation was 0.21.

This means that $\sigma = 0.21$

Sample of 450:

This means that $n = 450$

What is the margin of error, assuming a 70% confidence level, to the nearest hundredth?

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 1.037\frac{0.21}{\sqrt{450}}$

$M = 0.01$

The margin of error is of 0.01.

4 0

3 years ago

the table shows the fraction of votes that each candidate received. if 230 students voted, how many students voted for each cand

zaharov [31]

3/5=6/10 so Naomi got 138.
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5 0

2 years ago

Read 2 more answers

50 POINTS HELP ASAP PLZ What is the equation of this line?

RSB [31]

Answer:

i think its the third one

Step-by-step explanation: im srry if im wrong doe

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2 years ago

Add. (6x2 – 2x) + (5x – 7)

11Alexandr11 [23.1K]

Answer:

Thats going to be 12x

Step-by-step explanation:

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Ivanshal [37]

Answer:

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Step-by-step explanation:

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2 years ago