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ikadub [295]
3 years ago
5

I need help. All 3 questions please.

Mathematics
2 answers:
Nitella [24]3 years ago
6 0
For the first one the answer is B because 7 x 3 is 21

sorry i don't know the rest
Len [333]3 years ago
3 0
39) is A)6for the first one the answer is A)6 because 3 x 6 is less than 21 not equal to
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Find the z score that has 70.54% of the distribution area to its right
Alik [6]

The z score that has 70.54% of the distribution area is 9.92

<h3>What is a z-score?</h3>

The z-score is a numerical measurement used in statistics to refer to how much a given value differs from the standard deviation.

For the random variable x, the z-score is;

z = (x - 11)/2

therefore, 70.54% of the area under the curve lies to the right of x,

then the area to the left of x is;

100 - 70.54 = 29.46%

From the standard table, a z-score of -0.54 will yield an area of 29.46% to the left of x.

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(x - 11)/2 = -0.54

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The z score  is 9.92

Learn more about z score here;

brainly.com/question/4167122

#SPJ1

7 0
1 year ago
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