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raketka [301]
3 years ago
6

The difference between a and b

Mathematics
2 answers:
WARRIOR [948]3 years ago
7 0

sorry what are you asking?

e-lub [12.9K]3 years ago
5 0

Jhhhhhhhgfffggghhhhhhhhhffhjjj

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For the most recent year available, the mean annual cost to attend a private university in the United States was $20,307. Assume
Maksim231197 [3]

Answer:

27,361.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 20307, \sigma = 4275

Ninety-five percent of all students at private universities pay less than what amount?

This is the 95th percentile, that is, X when Z has a pvalue of 0.95. So X when Z = 1.65.

Z = \frac{X - \mu}{\sigma}

1.65 = \frac{X - 20307}{4275}

X - 20307 = 1.65*4275

X = 27,361

So the answer is 27,361.

7 0
3 years ago
Please help I dont know how
Tresset [83]

Answer:

y = 1/2x + 5

Step-by-step explanation:

The line has a slope of one half. If you look at the dots made, take a look at the dot on the y-axis. Then, if you move up one space from that point, and move two spaces to the right of the point, you reach the second dot. This determines the slope which would be written as 1/2x. Then, if you look back to where the line passes through the y axis, you'll see it landed on positive five. This means 5 will be added to the end of the equation. So, y equals the slope plus the y-intercept. y = 1/2x + 5

5 0
3 years ago
Read 2 more answers
What are three different complex fractions that simplify to 1/4
GaryK [48]
I know one of them is 1/2
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3 years ago
What is 1 plus 1 ??z.z.z.z.
Setler [38]

Answer:okkkkk

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Need help! For this question! Thank you
mihalych1998 [28]
You can use this equation $598.30+X=$954.70
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3 years ago
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