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4 years ago

How do you calculate correctly with real world measurements

1 answer:

6 0

<span>Based on the experience of the responder, to correctly calculate measurements in real-world. Firstly is to avoid errors as much as possible. Errors are what makes your measurement invalid and unreliable. There are two types of error which is called the systematic error and the random error. Each error has different sources. Words that were mentioned –invalid and unreliable are very important key aspects to determine that your measure is truly accurate and consistent. Some would recommend using the mean method, doing three trials in measuring and getting their mean, in response to this problem.
</span>HOPE THIS HELPED

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FiftyFifty adult men in the United States are randomly selected and measured for their body mass index (BMI). Based on that sa

Fynjy0 [20]

Answer: $(23.3,\ 29.7)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\pm ME.$ , where $\overline{x}$ is the sample mean and ME is the margin of error .

Given : The sample mean : $\overline{x}=26.5$

Margin of error : $ME=3.2$

Then , the range of values (confidence interval) likely to contain the true value of the population parameter will be :-

$26.5\pm 3.2=(26.5-3.2,\ 26.5+3.2)=(23.3,\ 29.7)$

Hence, the range of values likely to contain the true value of the population parameter = $(23.3,\ 29.7)$

3 0

3 years ago

Read 2 more answers

Wes measures the floor area of his rectangular living room to replace the carpet with tiles.The room is 12.4 feet long and 9.8 f

Zina [86]

Answer: 121.52 square feets

Step-by-step explanation:

The room has the shape of a rectangle and its dimensions are 12.4 feet long and 9.8 feet wide. This means that dimension of the carpet is also 12.4 feet long and 9.8 feet wide. To replace the rectangular carpet with tiles, the area of the tiles must be equal to the area of the carpet. The area of the carpet is determined by length × width.

Length of the room or carpet = 12.4 feets

Width of the room or carpet = 9.8 feets

The number of square feets of tiles that Wes will need

=12.4 ×9.8 = 121.52 square feets

7 0

3 years ago

2×|x|+19=167 find the values of x

Nuetrik [128]

Answer:

x = 74

Step-by-step explanation:

2 * x + 19 = 167

2x + 19 = 167

So we have to subtract 19 from both sides

2x = 148

Divide both sides by 2

x = 74

3 0

3 years ago

Suppose radius CA is a 12 meters long. What is the diameter of the circle

Romashka [77]

Answer:

24m

Step-by-step explanation:

6 0

3 years ago

A secretary’s hourly wage is $21. On Sunday, the secretary earns time and a half. How much does the secretary earn for working e

AVprozaik [17]

She earns twenty one dollars a hour regularly half of that is ten dollars and fifty cents . Add this to twenty one equals thirty one fifty a hour times eight equals two hundred and fifty two dollars for working on Sunday for eight hours .

6 0

3 years ago