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3 years ago

The number of goldfish in a tank is 12, and the volume of the tank is 45 cubic feet. What is the density of the tank?

Mathematics

2 answers:

Lady_Fox [76]3 years ago

7 0

Answer:

0.22

Step-by-step explanation:

In this problem, we divide 12 goldfishes by 45 cubic feet. This is equal to 0.27 goldfish per cubic feet. Answer is A.

0.22

Alex777 [14]3 years ago

7 0

Answer:

0.27

Step-by-step explanation:

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posledela

Answer:

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And for this case if the confidence increase the critical value increase so then this statement is True

Step-by-step explanation:

For a confidence level given c, we can find the significance level like this:

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And with the degrees of freedom given by:

$df=n-1$

We can find the critical value $t_{\alpha/2}$

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Answer:

Step-by-step explanation:⇔

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