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MrMuchimi
3 years ago
11

PLEASE HELP!!!!!!!!!!

Mathematics
1 answer:
trasher [3.6K]3 years ago
8 0

Ebony kept her bank account open for only 3 weeks, and the graph shows the entire 3 weeks. During that time,her greatest balance was $400

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3 years ago
The mean speed of vehicles along a stretch of highway is 56 mph with a standard deviation of 4 mph. You
Elenna [48]

The corresponding z score for speed of 62 mph, 47 mph, and 56 mph is 1.5, -2.25 and 0 respectively.

<h3>Z score</h3>

Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z=\frac{x-\mu}{\sigma }

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Given that:

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for x = 62:

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for x = 47:

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for x = 56:

z=\frac{56-56}{4 } =0

The corresponding z score for speed of 62 mph, 47 mph, and 56 mph is 1.5, -2.25 and 0 respectively.

Find out more on Z score at: brainly.com/question/25638875

4 0
2 years ago
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