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Ivenika [448]
3 years ago
7

Mr. Barnett’s test is normally distributed with a mean of 65 with a standard deviation of five points what is the probability th

at a randomly selected score is greater than 75 points

Mathematics
1 answer:
uranmaximum [27]3 years ago
4 0

Answer: 2.5%

Step-by-step explanation:

Mean score = 65

Standard deviation = 5

Score (x) = >75

Z-score = [(score - mean) ÷ standard deviation]

Z - score = [(75 - 65) ÷ 5]

Z - score = 10 ÷ 5 = 2

P(score higher than 75) = 100 - 95 = 5/2 = 2.5%

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The resulting equation will represent a line whose slope is 1/2 times the slope of the line

<h3>How to determine the slope of the new line?</h3>

The equation of the line is given as:

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The constant a is a positive constant.

So, when the value of a in the equation is doubled, we have:

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6 0
2 years ago
Hostoso
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6 0
3 years ago
BRAINLIEST!! What’s 36.3 square root ?
Marat540 [252]

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4 0
3 years ago
Which of the following are roots of the following polynomial x^3-11x^2+33x+45
Mandarinka [93]
For x^3-11x^2+33x+45 , we can make it an equation so <span>x^3-11x^2+33x+45=0. Next, we can find out if -1 or -3 is a factor. If -1 is a factor, than (x+1) is factorable. Using synthetic division, we get 

      x^2-12x+45
       ___ ________________________
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       _________________________
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          ______________
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___________
0


Since that works, it's either B or D. We just have to figure out when
</span> x^2-12x+45 equals 0, since there are 3 roots and we already found one. Using the quadratic formula, we end up getting (12+-sqrt(144-180))/2=
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4 years ago
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Nostrana [21]

Step 1

Yield% = (annual dividend per share) / (closing price per share)

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