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Debora [2.8K]
3 years ago
11

10 points and brainliest to correct answer plz

Mathematics
2 answers:
jekas [21]3 years ago
4 0
I think it would be 14
sergeinik [125]3 years ago
3 0
The answer is 14. Hope this helps!

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Pennsylvania has a land area of 44,816 square miles. What is the land area of Pennsylvania rounded to the nearest hundered?
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44,800 because in 44,816 the 1 is in the hundreds place and since it's smaller than one its going to be a 0
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What are 2 tv shows i can watch on hbo max for a 12 yr old #verymature​
hammer [34]

Answer:

7.1/10. 81/100. Pitch Perfect (2012)

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Step-by-step explanation:

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max2010maxim [7]

Answer: 2 and three-fourths (2 3/4)

Step-by-step explanation:

11 * 1/4

1/4 = 0.25

0.25 * 11 = 2.75

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At Hogwarts School of Witchcraft and Wizardry, Professor Snape was concerned about grade inflation, and suggested that the schoo
ExtremeBDS [4]

Answers:

The z scores are approximately:

  • Care of Magical Creatures:  z = 0.333
  • Defense Against the Dark Arts:  z = 0.583
  • Transfiguration:  z = -0.263
  • Potions: z = -0.533

From those scores, we can say:

  • Best grade = Defense Against the Dark Arts
  • Worst grade = Potions

=====================================================

Further Explanation:

We'll need to convert each given score to a corresponding standardized z score.

The formula to use is

z = (x - mu)/sigma

where,

  • x = given grade for each class
  • mu = mean
  • sigma = standard deviation

Let's find the z score for the Care of Magical Creatures class

z = (x - mu)/sigma

z = (3.80 - 3.75)/(0.15)

z = 0.333 approximately

Repeat this process for the Defense Against the Dark Arts score.

z = (x - mu)/sigma

z = (3.60 - 3.25)/(0.60)

z = 0.583 approximately

And for the Transfiguration class as well

z = (x - mu)/sigma

z = (3.10 - 3.20)/(0.38)

z = -0.263 approximately

The negative z score means his grade below the average, whereas earlier the other scores were above the average since he got positive z scores.

Now do the final class (Potions) to get this z score

z = (x - mu)/sigma

z = (2.50 - 2.90)/(0.75)

z = -0.533 approximately

This grade is below average as well.

----------------------------

To summarize, we have these z scores

  • Care of Magical Creatures:  z = 0.333
  • Defense Against the Dark Arts:  z = 0.583
  • Transfiguration:  z = -0.263
  • Potions: z = -0.533

Harry did his best in Defense Against the Dark Arts because the z score of 0.583 (approximate) is the largest of the four z scores. On the other hand, his worst grade is in Potions because -0.533 is the lowest z score.

3 0
1 year ago
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