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Mademuasel [1]
2 years ago
7

Pls halp I need it fast so please try your best to be fast

Mathematics
2 answers:
Charra [1.4K]2 years ago
8 0

Answer:

B

Step-by-step explanation:

icang [17]2 years ago
4 0

Answer:B

Step-by-step explanation:

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An airport is studying the noise levels of jets during takeoff as they pass over a neighborhood. They find that at the present t
avanturin [10]

Answer:  2.28%

Step-by-step explanation:

Given: An airport find that at the present time, the mean noise level is 103 decibels and the standard deviation is 5.4 decibels.

The distribution of noise levels(x) for all jets during takeoff over the neighborhood has a normal distribution.

The probability that jets have a noise level less than 92.2 decibels when taking off over this neighborhood will be :-

P(X

Hence, the percent of these jets have a noise level less than 92.2 decibels when taking off over this neighborhood = 2.28%

6 0
2 years ago
Please help me 13 points​
Fittoniya [83]
A. 28
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C. 71.4
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3 years ago
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3 years ago
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12/3 = 4. 4×4=16

6 0
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