2 years ago

I need help, how many chirps per minute?? and why?

1 answer:

8 0

About 90 maybe but not sure

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2. It's one away from 100.
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Leni [432]

It was $30.60 for each centerpieces

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wolverine [178]

Answer:

z-score = 4.43,

It is a Good day

Step-by-step explanation:

The provided information is:

Mean = $28,286.28

Standard deviation = $1,500

Let x be the sell of department store on Tuesday.

Then, x = $34,924.62

The z-score is define as:

$z=\dfrac{x-\mu}{\sigma}\\\\=\dfrac{34924.62-28286.28}{1500}\\\\=4.43$

Thus, the Tuesday's z-score is 4.43. So this is usually good day.

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2 years ago