3 years ago

Calculate the mean: 5,10,12,4,6,11,13,5

1 answer:

3 0

For calculating the mean, you want to add up all of the numbers then divide by how many numbers there are. So you'd do:

5+10+12+4+6+11+13+5 then divide that by 8

The answer to your question is: 8.25

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The number of sit-ups that all tenth-grade girls can do in 5 minutes is normally distributed. beth surveyed 20 of her fellow int

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The true statement is as follows "No because she did not use a simple random sample".

<h3>What is random sampling?</h3>

Random sampling is the method to choose the given samples of observation to make assumptions about the population.

It is given that

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Sample: 20 intramural tennis players

The 20 intramural tennis players cannot represent all tenth-grade girls.

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Read more about random sampling at:

brainly.com/question/1334729

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2 years ago

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3 years ago

When Theresa walks at a pace of 88 steps per minute, it takes her 90 minutes to walk the trail. If she alters her pace to 33 ste

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Answer: 33 minutes

Step-by-step explanation:

Hi to answer this question we have to write a proportion

Speed rate = 88 step per minute

Time = 90 minutes

So, the proportion is 88 step/min / 90 minutes

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solving for x:

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x = 33.75 = 33 minutes.

Feel free to ask for more if needed or if you did not understand something.

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