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alexira [117]
2 years ago
9

Suppose that in a large class, the instructor announces that the average grade on an exam is 75. Which is more likely to be clos

er to 75.
The exam grade of a randomly selected student in the class or the mean exam grade of a sample of 10 students? Explain your answer. ​
Mathematics
1 answer:
Tanya [424]2 years ago
6 0

Answer:

The student's z-score will not change

Explanation:

Z-scores are used to compare results of an individual or entity to the average population's scores.

Since the adjustment of additional points is added to each class member's score, the adjustment will shift the entire distribution of scores. However, there will not be a change in the relative position of the student's score in the class. As a result, the student's z-score will not change.

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A picture is x+20 cm in width and 2x-10 cm in length. The frame is a
Jobisdone [24]

Answer:

A = 1100cm^2

Step by step Explanation:

given the dimensions of width and length of the picture are x+20 by 2x-10 and the frame is a constant 5 cm wider from the edge of the picture to the frame, than the area of the frame is defined as (x+30)(2x)-(x+20)(2x-10) = 30x+200.

If the width is equal to the length which I assume is true if the width is constant.

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if this is true than 30(30)+200 = 1100cm^2

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3 years ago
10 cm
densk [106]

Answer:

Answer is 264 cm^2

Step-by-step explanation:

3 0
2 years ago
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Solve for c: c divided by 3 equals 8
ohaa [14]

Answer:

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Step-by-step explanation:

c/3 = 8

Multiply each side by 3

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2 years ago
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At the beach cleanup, Maya's group collected 14.8 pounds of trash on Saturday and 12.5 pounds on Sunday. Will's group collected
stellarik [79]
C) 15.5 pounds

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2 years ago
What values for x would make the lines parallel?
Svetllana [295]

Answer:

x = 15  degrees

3 angles in triangle are 44, 44 and 92 degrees.


Step-by-step explanation:

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In the triangle:-

The angle adjacent to 136 = 180 - 136

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3 years ago
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