2 years ago

300 mi /20 sec = ? Mi /1 min

1 answer:

4 0

Answer:

900

Step-by-step explanation:

To get your answer, you can just multiply 20 seconds by 3 to get 60 seconds, which is a minute.

Since whatever you do on one side you have to do to the other, multiply 300 mi by 3 as well. That would get you 900.

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lilavasa [31]

The following is the most appropriate method for investigating the sociologist’s belief is,

A. A one-sample zz-test for a difference in population proportions

Step-by-step explanation:

The young adults in a county get their news from online sources are 75 percent.

But according to sociologist the percentage is actually greater than 75 percent.
The correct answer is A one-sample zz-test for a difference in population proportions.
The One proportion Z-test is used to compare proportion which is observed to a theoretical one, only when there are only two categories.
A z-test is a statistical test which is used to determine whether there are two population which means there are different when the variances are known and the sample size is relatively large.