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kobusy [5.1K]
2 years ago
7

Ana can bike 9 kilometers in 24 minutes. At this rate, how far can Ana bike in 1 minute? __ kilometer(s) per minute

Mathematics
1 answer:
Rom4ik [11]2 years ago
4 0

Answer: 9/24km

Step-by-step explanation:

Since we are informed that Ana can bike 9 kilometers in 24 minutes.

To calculate the distance that Ana can bike in 1 minute will be gotten by dividing the distance covered divided by the time taken. This will be:

= 9/24 km

Therefore, Anna can bike 9/24km in 1 minute.

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A researcher is going to estimate the average typing speed of students of a college. He selects a random sample of 20 students a
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Answer:

The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.

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The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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M = 1.7291\frac{5}{\sqrt{20}}

M = 1.933

The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.

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