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Artyom0805 [142]
3 years ago
10

A professor is grading the final exam. He notices that the mean test score is 61, and the standard deviation is 10. The test sco

res were normally distributed. if there were 450 students in the data sample, how many would have a test score between 61 and 71? *Round your answer to the nearest full value.
Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

66666699999

Step-by-step explanation:

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Which description does not guarantee that a trapezoid is isosceles??
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Congruent bases does NOT guarantee that a trapezoid is isosceles.

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Which of the equations below represents a line perpendicular to the yaxis?
lions [1.4K]

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A. y=-6

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Using the answer, it would make a horizontal line which would be perpendicular to the y axis.

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Determine the equation of the line with slope 3/4 passing through the point 4,0
Vitek1552 [10]

Answer:

y = \frac{3}{4}x - 3

Step-by-step explanation:

If it has a slope of 3/4, then it will look like this:

y = \frac{3}{4}x + b

If it passes through (4, 0), than y = 0 when x = 4

y = \frac{3}{4}(4) + b

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3 years ago
A test was given to a group of students. The grades and gender are summarized below
jasenka [17]

Answer:

<h3>★ <u>11/30</u> is the right answer. ★</h3>

Step-by-step explanation:

  • Number of male students who got 'A' in the test is 11
  • Number of female students who got 'A' in the test is 19
  • Total students who got 'A' in the test is 30
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4 0
3 years ago
A text font fits 12 characters per inch. Using the same font, how many characters can be expected per yard of text? There are 12
Bond [772]

Answer:

432 characters

Step-by-step explanation:

First we can convert 12 characters per inch in to characters per feet. Knowing that there are 12 inches per foot we know we have to multiply the 12 characters per inch by 12, giving us 144 characters per foot. Now we have to convert characters per foot to characters per yard. Knowing there are 3 feet per yard we know we have to multiply 144 characters per foot by 3, giving us a final answer of 432 characters per yard of text.

7 0
3 years ago
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