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AleksAgata [21]
3 years ago
6

According to the Empirical Rule, 99.7% of scores in a normal distribution fall within 2 standard deviations of the mean.

Mathematics
1 answer:
timofeeve [1]3 years ago
3 0

Answer:

False

Step-by-step explanation:

Here, we want to check the validity of the given statement. The statement is false.

Under the empirical rule, following a normal distribution, 99.7% of observed data lies within 3 standard deviations from the mean while 95% of observed data lies within 2 standard deviation from the mean and 68% of observed data lies within 1 standard deviation of the mean.

Please check attachment for diagrammatic representation of the empirical rule.

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Please help. Thank you.
Trava [24]

Answer:

By the Pythagoras theorem, the hypotenuse (c), is equivalent to:

a^2+ b^2= c^2 where a and b are the other two sides of the right angled triangle, hence c= square root (15^2+ 20^2)= 25

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Katena32 [7]

Answer:

29

Step-by-step explanation:

6 0
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48 wooden pre-sharpened pencils cost $1.88. How much does EACH pencil cost?
Lady bird [3.3K]

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0.04 is as close as it gets

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Solve for y<br> (y/x+6)+1 =(4x/x+6)<br> Enter your answer in the box.<br> y=
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3 years ago
In the triangle below,
Greeley [361]

Answer:

12.3

Step-by-step explanation:

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cos 35 degrees = adjacent/hypontenuse

cos 35 = y/ 15

15( cos35 ) = y

y=12.287

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